883 lines
38 KiB
Plaintext
883 lines
38 KiB
Plaintext
# $Cambridge: exim/exim-src/src/configure.default,v 1.14 2009/10/16 07:46:13 tom Exp $
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######################################################################
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# Runtime configuration file for Exim #
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######################################################################
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# This is a default configuration file which will operate correctly in
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# uncomplicated installations. Please see the manual for a complete list
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# of all the runtime configuration options that can be included in a
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# configuration file. There are many more than are mentioned here. The
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# manual is in the file doc/spec.txt in the Exim distribution as a plain
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# ASCII file. Other formats (PostScript, Texinfo, HTML, PDF) are available
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# from the Exim ftp sites. The manual is also online at the Exim web sites.
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# This file is divided into several parts, all but the first of which are
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# headed by a line starting with the word "begin". Only those parts that
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# are required need to be present. Blank lines, and lines starting with #
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# are ignored.
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########### IMPORTANT ########## IMPORTANT ########### IMPORTANT ###########
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# #
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# Whenever you change Exim's configuration file, you *must* remember to #
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# HUP the Exim daemon, because it will not pick up the new configuration #
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# until you do. However, any other Exim processes that are started, for #
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# example, a process started by an MUA in order to send a message, will #
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# see the new configuration as soon as it is in place. #
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# #
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# You do not need to HUP the daemon for changes in auxiliary files that #
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# are referenced from this file. They are read every time they are used. #
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# #
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# It is usually a good idea to test a new configuration for syntactic #
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# correctness before installing it (for example, by running the command #
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# "exim -C /config/file.new -bV"). #
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# #
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########### IMPORTANT ########## IMPORTANT ########### IMPORTANT ###########
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CONFDIR = <%= scope.lookupvar('exim::params::conf_dir') %>
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######################################################################
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# MAIN CONFIGURATION SETTINGS #
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######################################################################
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# Specify your host's canonical name here. This should normally be the fully
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# qualified "official" name of your host. If this option is not set, the
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# uname() function is called to obtain the name. In many cases this does
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# the right thing and you need not set anything explicitly.
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# primary_hostname =
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# The next three settings create two lists of domains and one list of hosts.
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# These lists are referred to later in this configuration using the syntax
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# +local_domains, +relay_to_domains, and +relay_from_hosts, respectively. They
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# are all colon-separated lists:
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domainlist local_domains = @<% if @mailman_domains.length > 0 -%>:<%= @mailman_domains.join(":") %><% end -%>
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domainlist relay_to_domains =
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hostlist relay_from_hosts = 127.0.0.1
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# Most straightforward access control requirements can be obtained by
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# appropriate settings of the above options. In more complicated situations,
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# you may need to modify the Access Control Lists (ACLs) which appear later in
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# this file.
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# The first setting specifies your local domains, for example:
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#
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# domainlist local_domains = my.first.domain : my.second.domain
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#
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# You can use "@" to mean "the name of the local host", as in the default
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# setting above. This is the name that is specified by primary_hostname,
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# as specified above (or defaulted). If you do not want to do any local
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# deliveries, remove the "@" from the setting above. If you want to accept mail
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# addressed to your host's literal IP address, for example, mail addressed to
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# "user@[192.168.23.44]", you can add "@[]" as an item in the local domains
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# list. You also need to uncomment "allow_domain_literals" below. This is not
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# recommended for today's Internet.
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# The second setting specifies domains for which your host is an incoming relay.
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# If you are not doing any relaying, you should leave the list empty. However,
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# if your host is an MX backup or gateway of some kind for some domains, you
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# must set relay_to_domains to match those domains. For example:
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#
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# domainlist relay_to_domains = *.myco.com : my.friend.org
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#
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# This will allow any host to relay through your host to those domains.
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# See the section of the manual entitled "Control of relaying" for more
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# information.
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# The third setting specifies hosts that can use your host as an outgoing relay
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# to any other host on the Internet. Such a setting commonly refers to a
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# complete local network as well as the localhost. For example:
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#
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# hostlist relay_from_hosts = 127.0.0.1 : 192.168.0.0/16
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#
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# The "/16" is a bit mask (CIDR notation), not a number of hosts. Note that you
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# have to include 127.0.0.1 if you want to allow processes on your host to send
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# SMTP mail by using the loopback address. A number of MUAs use this method of
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# sending mail.
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# All three of these lists may contain many different kinds of item, including
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# wildcarded names, regular expressions, and file lookups. See the reference
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# manual for details. The lists above are used in the access control lists for
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# checking incoming messages. The names of these ACLs are defined here:
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acl_smtp_rcpt = acl_check_rcpt
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acl_smtp_data = acl_check_data
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# You should not change those settings until you understand how ACLs work.
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# If you are running a version of Exim that was compiled with the content-
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# scanning extension, you can cause incoming messages to be automatically
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# scanned for viruses. You have to modify the configuration in two places to
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# set this up. The first of them is here, where you define the interface to
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# your scanner. This example is typical for ClamAV; see the manual for details
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# of what to set for other virus scanners. The second modification is in the
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# acl_check_data access control list (see below).
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# av_scanner = clamd:/tmp/clamd
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# For spam scanning, there is a similar option that defines the interface to
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# SpamAssassin. You do not need to set this if you are using the default, which
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# is shown in this commented example. As for virus scanning, you must also
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# modify the acl_check_data access control list to enable spam scanning.
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# spamd_address = 127.0.0.1 783
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# If Exim is compiled with support for TLS, you may want to enable the
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# following options so that Exim allows clients to make encrypted
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# connections. In the authenticators section below, there are template
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# configurations for plaintext username/password authentication. This kind
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# of authentication is only safe when used within a TLS connection, so the
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# authenticators will only work if the following TLS settings are turned on
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# as well.
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# Allow any client to use TLS.
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#tls_advertise_hosts = *
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# Specify the location of the Exim server's TLS certificate and private key.
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# The private key must not be encrypted (password protected). You can put
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# the certificate and private key in the same file, in which case you only
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# need the first setting, or in separate files, in which case you need both
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# options.
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# tls_certificate = /etc/ssl/exim.crt
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# tls_privatekey = /etc/ssl/exim.pem
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# In order to support roaming users who wish to send email from anywhere,
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# you may want to make Exim listen on other ports as well as port 25, in
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# case these users need to send email from a network that blocks port 25.
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# The standard port for this purpose is port 587, the "message submission"
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# port. See RFC 4409 for details. Microsoft MUAs cannot be configured to
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# talk the message submission protocol correctly, so if you need to support
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# them you should also allow TLS-on-connect on the traditional but
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# non-standard port 465.
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# daemon_smtp_ports = 25 : 465 : 587
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# tls_on_connect_ports = 465
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# Specify the domain you want to be added to all unqualified addresses
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# here. An unqualified address is one that does not contain an "@" character
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# followed by a domain. For example, "caesar@rome.example" is a fully qualified
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# address, but the string "caesar" (i.e. just a login name) is an unqualified
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# email address. Unqualified addresses are accepted only from local callers by
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# default. See the recipient_unqualified_hosts option if you want to permit
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# unqualified addresses from remote sources. If this option is not set, the
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# primary_hostname value is used for qualification.
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# qualify_domain =
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# If you want unqualified recipient addresses to be qualified with a different
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# domain to unqualified sender addresses, specify the recipient domain here.
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# If this option is not set, the qualify_domain value is used.
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# qualify_recipient =
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# The following line must be uncommented if you want Exim to recognize
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# addresses of the form "user@[10.11.12.13]" that is, with a "domain literal"
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# (an IP address) instead of a named domain. The RFCs still require this form,
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# but it makes little sense to permit mail to be sent to specific hosts by
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# their IP address in the modern Internet. This ancient format has been used
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# by those seeking to abuse hosts by using them for unwanted relaying. If you
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# really do want to support domain literals, uncomment the following line, and
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# see also the "domain_literal" router below.
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# allow_domain_literals
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# No deliveries will ever be run under the uids of users specified by
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# never_users (a colon-separated list). An attempt to do so causes a panic
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# error to be logged, and the delivery to be deferred. This is a paranoic
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# safety catch. There is an even stronger safety catch in the form of the
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# FIXED_NEVER_USERS setting in the configuration for building Exim. The list of
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# users that it specifies is built into the binary, and cannot be changed. The
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# option below just adds additional users to the list. The default for
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# FIXED_NEVER_USERS is "root", but just to be absolutely sure, the default here
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# is also "root".
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# Note that the default setting means you cannot deliver mail addressed to root
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# as if it were a normal user. This isn't usually a problem, as most sites have
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# an alias for root that redirects such mail to a human administrator.
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never_users = root
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# The setting below causes Exim to do a reverse DNS lookup on all incoming
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# IP calls, in order to get the true host name. If you feel this is too
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# expensive, you can specify the networks for which a lookup is done, or
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# remove the setting entirely.
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host_lookup = *
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# The settings below, which are actually the same as the defaults in the
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# code, cause Exim to make RFC 1413 (ident) callbacks for all incoming SMTP
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# calls. You can limit the hosts to which these calls are made, and/or change
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# the timeout that is used. If you set the timeout to zero, all RFC 1413 calls
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# are disabled. RFC 1413 calls are cheap and can provide useful information
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# for tracing problem messages, but some hosts and firewalls have problems
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# with them. This can result in a timeout instead of an immediate refused
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# connection, leading to delays on starting up SMTP sessions. (The default was
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# reduced from 30s to 5s for release 4.61.)
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rfc1413_hosts = *
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rfc1413_query_timeout = 0s
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# By default, Exim expects all envelope addresses to be fully qualified, that
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# is, they must contain both a local part and a domain. If you want to accept
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# unqualified addresses (just a local part) from certain hosts, you can specify
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# these hosts by setting one or both of
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#
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# sender_unqualified_hosts =
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# recipient_unqualified_hosts =
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#
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# to control sender and recipient addresses, respectively. When this is done,
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# unqualified addresses are qualified using the settings of qualify_domain
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# and/or qualify_recipient (see above).
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# If you want Exim to support the "percent hack" for certain domains,
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# uncomment the following line and provide a list of domains. The "percent
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# hack" is the feature by which mail addressed to x%y@z (where z is one of
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# the domains listed) is locally rerouted to x@y and sent on. If z is not one
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# of the "percent hack" domains, x%y is treated as an ordinary local part. This
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# hack is rarely needed nowadays; you should not enable it unless you are sure
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# that you really need it.
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#
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# percent_hack_domains =
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#
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# As well as setting this option you will also need to remove the test
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# for local parts containing % in the ACL definition below.
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# When Exim can neither deliver a message nor return it to sender, it "freezes"
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# the delivery error message (aka "bounce message"). There are also other
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# circumstances in which messages get frozen. They will stay on the queue for
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# ever unless one of the following options is set.
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# This option unfreezes frozen bounce messages after two days, tries
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# once more to deliver them, and ignores any delivery failures.
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ignore_bounce_errors_after = 2d
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# This option cancels (removes) frozen messages that are older than a week.
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timeout_frozen_after = 7d
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# By default, messages that are waiting on Exim's queue are all held in a
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# single directory called "input" which it itself within Exim's spool
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# directory. (The default spool directory is specified when Exim is built, and
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# is often /var/spool/exim/.) Exim works best when its queue is kept short, but
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# there are circumstances where this is not always possible. If you uncomment
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# the setting below, messages on the queue are held in 62 subdirectories of
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# "input" instead of all in the same directory. The subdirectories are called
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# 0, 1, ... A, B, ... a, b, ... z. This has two benefits: (1) If your file
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# system degrades with many files in one directory, this is less likely to
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# happen; (2) Exim can process the queue one subdirectory at a time instead of
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# all at once, which can give better performance with large queues.
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# split_spool_directory = true
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# This controls the maximum number of queue runner processes that an
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# Exim daemon can run simultaneously. This does not mean that it
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# starts them all at once, but rather that if the maximum number are
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# still running when the time comes to start another one, it refrains
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# from starting another one. This can happen with very large queues
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# and/or very sluggish deliveries. This option does not, however,
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# interlock with other processes, so additional queue runners can be
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# started by other means, or by killing and restarting the daemon.
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queue_run_max = <%= @queue_run_max %>
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# When this option is set, a delivery process is started whenever a
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# message is received, routing is performed, and local deliveries take
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# place. However, if any SMTP deliveries are required for domains that
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# match queue_smtp_domains, they are not immediately delivered, but
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# instead the message waits on the queue for the next queue run. Since
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# routing of the message has taken place, Exim knows to which remote
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# hosts it must be delivered, and so when the queue run happens,
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# multiple messages for the same host are delivered over a single SMTP
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# connection. The -odqs command line option causes all SMTP deliveries
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# to be queued in this way, and is equivalent to setting
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# queue_smtp_domains to "*". See also hold_domains and queue_domains.
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<% if @queue_smtp_domains != "" -%>
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queue_smtp_domains = <%= @queue_smtp_domains %>
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<% end %>
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<% if @mailman_domains.length > 0 -%>
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# Home dir for your Mailman installation -- aka Mailman's prefix
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# directory.
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MM_HOME=/var/lib/mailman
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#
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# User and group for Mailman, should match your --with-mail-gid
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# switch to Mailman's configure script.
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# Value is normally "mailman"
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MM_UID=list
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MM_GID=list
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#
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# Domains that your lists are in - colon separated list
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# you may wish to add these into local_domains as well
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domainlist mm_domains=<%= @mailman_domains.join(":") %>
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#
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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#
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# These values are derived from the ones above and should not need
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# editing unless you have munged your mailman installation
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#
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# The path of the Mailman mail wrapper script
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MM_WRAP=MM_HOME/mail/mailman
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#
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# The path of the list config file (used as a required file when
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# verifying list addresses)
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MM_LISTCHK=MM_HOME/lists/${lc::$local_part}/config.pck
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<% end -%>
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# Google is way behind the times on IPv6 and tends to reject mail from
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# new v6 addrs:
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dns_ipv4_lookup = *.gmail.com : *.google.com
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######################################################################
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# ACL CONFIGURATION #
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# Specifies access control lists for incoming SMTP mail #
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######################################################################
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begin acl
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# This access control list is used for every RCPT command in an incoming
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# SMTP message. The tests are run in order until the address is either
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# accepted or denied.
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acl_check_rcpt:
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# Accept if the source is local SMTP (i.e. not over TCP/IP). We do this by
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# testing for an empty sending host field.
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accept hosts = :
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control = dkim_disable_verify
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#############################################################################
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# The following section of the ACL is concerned with local parts that contain
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# @ or % or ! or / or | or dots in unusual places.
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#
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# The characters other than dots are rarely found in genuine local parts, but
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# are often tried by people looking to circumvent relaying restrictions.
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# Therefore, although they are valid in local parts, these rules lock them
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# out, as a precaution.
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#
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# Empty components (two dots in a row) are not valid in RFC 2822, but Exim
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# allows them because they have been encountered. (Consider local parts
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# constructed as "firstinitial.secondinitial.familyname" when applied to
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# someone like me, who has no second initial.) However, a local part starting
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# with a dot or containing /../ can cause trouble if it is used as part of a
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# file name (e.g. for a mailing list). This is also true for local parts that
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# contain slashes. A pipe symbol can also be troublesome if the local part is
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# incorporated unthinkingly into a shell command line.
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#
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# Two different rules are used. The first one is stricter, and is applied to
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# messages that are addressed to one of the local domains handled by this
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# host. The line "domains = +local_domains" restricts it to domains that are
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# defined by the "domainlist local_domains" setting above. The rule blocks
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# local parts that begin with a dot or contain @ % ! / or |. If you have
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# local accounts that include these characters, you will have to modify this
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# rule.
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deny message = Restricted characters in address
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domains = +local_domains
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local_parts = ^[.] : ^.*[@%!/|]
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# The second rule applies to all other domains, and is less strict. The line
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# "domains = !+local_domains" restricts it to domains that are NOT defined by
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# the "domainlist local_domains" setting above. The exclamation mark is a
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# negating operator. This rule allows your own users to send outgoing
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# messages to sites that use slashes and vertical bars in their local parts.
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# It blocks local parts that begin with a dot, slash, or vertical bar, but
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# allows these characters within the local part. However, the sequence /../
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# is barred. The use of @ % and ! is blocked, as before. The motivation here
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# is to prevent your users (or your users' viruses) from mounting certain
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# kinds of attack on remote sites.
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deny message = Restricted characters in address
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domains = !+local_domains
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local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
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#############################################################################
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# Accept mail to postmaster in any local domain, regardless of the source,
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# and without verifying the sender.
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accept local_parts = postmaster
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domains = +local_domains
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# Deny unless the sender address can be verified.
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require verify = sender
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# Accept if the message arrived over an authenticated connection, from
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# any host. Again, these messages are usually from MUAs, so recipient
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# verification is omitted, and submission mode is set. And again, we do this
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# check before any black list tests.
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accept authenticated = *
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control = submission/domain=
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control = dkim_disable_verify
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# Accept if the message comes from one of the hosts for which we are an
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# outgoing relay. It is assumed that such hosts are most likely to be MUAs,
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# so we set control=submission to make Exim treat the message as a
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# submission. It will fix up various errors in the message, for example, the
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# lack of a Date: header line. If you are actually relaying out out from
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# MTAs, you may want to disable this. If you are handling both relaying from
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# MTAs and submissions from MUAs you should probably split them into two
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# lists, and handle them differently.
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# Recipient verification is omitted here, because in many cases the clients
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# are dumb MUAs that don't cope well with SMTP error responses. If you are
|
|
# actually relaying out from MTAs, you should probably add recipient
|
|
# verification here.
|
|
|
|
# Note that, by putting this test before any DNS black list checks, you will
|
|
# always accept from these hosts, even if they end up on a black list. The
|
|
# assumption is that they are your friends, and if they get onto a black
|
|
# list, it is a mistake.
|
|
|
|
accept hosts = +relay_from_hosts
|
|
control = submission
|
|
control = dkim_disable_verify
|
|
|
|
# In case people cargo-cult our Zuul configuration, only allow
|
|
# messages with an envelope sender of jenkins from OpenStack's Zuul.
|
|
|
|
deny senders = jenkins@openstack.org
|
|
!hosts = zuul.openstack.org : 127.0.0.1
|
|
message = Sender address not permitted from this host
|
|
|
|
# Insist that any other recipient address that we accept is either in one of
|
|
# our local domains, or is in a domain for which we explicitly allow
|
|
# relaying. Any other domain is rejected as being unacceptable for relaying.
|
|
|
|
require message = relay not permitted
|
|
domains = +local_domains : +relay_to_domains
|
|
|
|
# We also require all accepted addresses to be verifiable. This check will
|
|
# do local part verification for local domains, but only check the domain
|
|
# for remote domains. The only way to check local parts for the remote
|
|
# relay domains is to use a callout (add /callout), but please read the
|
|
# documentation about callouts before doing this.
|
|
|
|
require verify = recipient
|
|
|
|
#############################################################################
|
|
# There are no default checks on DNS black lists because the domains that
|
|
# contain these lists are changing all the time. However, here are two
|
|
# examples of how you can get Exim to perform a DNS black list lookup at this
|
|
# point. The first one denies, whereas the second just warns.
|
|
#
|
|
# deny message = rejected because $sender_host_address is in a black list at $dnslist_domain\n$dnslist_text
|
|
# dnslists = black.list.example
|
|
#
|
|
# warn dnslists = black.list.example
|
|
# add_header = X-Warning: $sender_host_address is in a black list at $dnslist_domain
|
|
# log_message = found in $dnslist_domain
|
|
#############################################################################
|
|
|
|
#############################################################################
|
|
# This check is commented out because it is recognized that not every
|
|
# sysadmin will want to do it. If you enable it, the check performs
|
|
# Client SMTP Authorization (csa) checks on the sending host. These checks
|
|
# do DNS lookups for SRV records. The CSA proposal is currently (May 2005)
|
|
# an Internet draft. You can, of course, add additional conditions to this
|
|
# ACL statement to restrict the CSA checks to certain hosts only.
|
|
#
|
|
# require verify = csa
|
|
#############################################################################
|
|
|
|
# At this point, the address has passed all the checks that have been
|
|
# configured, so we accept it unconditionally.
|
|
|
|
accept
|
|
|
|
|
|
# This ACL is used after the contents of a message have been received. This
|
|
# is the ACL in which you can test a message's headers or body, and in
|
|
# particular, this is where you can invoke external virus or spam scanners.
|
|
# Some suggested ways of configuring these tests are shown below, commented
|
|
# out. Without any tests, this ACL accepts all messages. If you want to use
|
|
# such tests, you must ensure that Exim is compiled with the content-scanning
|
|
# extension (WITH_CONTENT_SCAN=yes in Local/Makefile).
|
|
|
|
acl_check_data:
|
|
|
|
# Deny if the message contains a virus. Before enabling this check, you
|
|
# must install a virus scanner and set the av_scanner option above.
|
|
#
|
|
# deny malware = *
|
|
# message = This message contains a virus ($malware_name).
|
|
|
|
# Add headers to a message if it is judged to be spam. Before enabling this,
|
|
# you must install SpamAssassin. You may also need to set the spamd_address
|
|
# option above.
|
|
#
|
|
# warn spam = nobody
|
|
# add_header = X-Spam_score: $spam_score\n\
|
|
# X-Spam_score_int: $spam_score_int\n\
|
|
# X-Spam_bar: $spam_bar\n\
|
|
# X-Spam_report: $spam_report
|
|
|
|
# In case people cargo-cult our Zuul configuration, only allow
|
|
# messages with a From header of jenkins from OpenStack's Zuul.
|
|
|
|
deny condition = ${if eq{${address:$h_from:}}\
|
|
{jenkins@openstack.org}}
|
|
!hosts = zuul.openstack.org : 127.0.0.1
|
|
message = From address not permitted from this host
|
|
|
|
# Accept the message.
|
|
|
|
accept
|
|
|
|
|
|
######################################################################
|
|
# ROUTERS CONFIGURATION #
|
|
# Specifies how addresses are handled #
|
|
######################################################################
|
|
# THE ORDER IN WHICH THE ROUTERS ARE DEFINED IS IMPORTANT! #
|
|
# An address is passed to each router in turn until it is accepted. #
|
|
######################################################################
|
|
|
|
begin routers
|
|
|
|
<% if @mailman_domains.length > 0 -%>
|
|
# Pick up on messages from our local mailman and route them via our
|
|
# special VERP-enabled transport
|
|
#
|
|
mailman_verp_router:
|
|
driver = dnslookup
|
|
# we only consider messages sent in through loopback
|
|
condition = ${if or{{eq{$sender_host_address}{127.0.0.1}} \
|
|
{eq{$sender_host_address}{::1}}}{yes}{no}}
|
|
# we do not do this for traffic going to the local machine
|
|
domains = !+local_domains:!+mm_domains
|
|
ignore_target_hosts = <; 0.0.0.0; \
|
|
64.94.110.11; \
|
|
127.0.0.0/8; \
|
|
::1/128;fe80::/10;fe \
|
|
c0::/10;ff00::/8
|
|
# only the un-VERPed bounce addresses are handled
|
|
senders = "*-bounces@*"
|
|
transport = mailman_verp_smtp
|
|
|
|
mailman_router:
|
|
driver = accept
|
|
domains = +mm_domains
|
|
require_files = MM_LISTCHK
|
|
local_part_suffix_optional
|
|
local_part_suffix = -admin : \
|
|
-bounces : -bounces+* : \
|
|
-confirm : -confirm+* : \
|
|
-join : -leave : \
|
|
-owner : -request : \
|
|
-subscribe : -unsubscribe
|
|
transport = mailman_transport
|
|
<% end -%>
|
|
|
|
# This router routes to remote hosts over SMTP by explicit IP address,
|
|
# when an email address is given in "domain literal" form, for example,
|
|
# <user@[192.168.35.64]>. The RFCs require this facility. However, it is
|
|
# little-known these days, and has been exploited by evil people seeking
|
|
# to abuse SMTP relays. Consequently it is commented out in the default
|
|
# configuration. If you uncomment this router, you also need to uncomment
|
|
# allow_domain_literals above, so that Exim can recognize the syntax of
|
|
# domain literal addresses.
|
|
|
|
# domain_literal:
|
|
# driver = ipliteral
|
|
# domains = ! +local_domains
|
|
# transport = remote_smtp
|
|
|
|
|
|
# This router routes addresses that are not in local domains by doing a DNS
|
|
# lookup on the domain name. The exclamation mark that appears in "domains = !
|
|
# +local_domains" is a negating operator, that is, it can be read as "not". The
|
|
# recipient's domain must not be one of those defined by "domainlist
|
|
# local_domains" above for this router to be used.
|
|
#
|
|
# If the router is used, any domain that resolves to 0.0.0.0 or to a loopback
|
|
# interface address (127.0.0.0/8) is treated as if it had no DNS entry. Note
|
|
# that 0.0.0.0 is the same as 0.0.0.0/32, which is commonly treated as the
|
|
# local host inside the network stack. It is not 0.0.0.0/0, the default route.
|
|
# If the DNS lookup fails, no further routers are tried because of the no_more
|
|
# setting, and consequently the address is unrouteable.
|
|
|
|
<% if @smarthost -%>
|
|
smarthost:
|
|
driver = manualroute
|
|
domains = !+local_domains
|
|
transport = remote_smtp
|
|
route_list = * <%= @smarthost %>
|
|
no_more
|
|
<% else -%>
|
|
dnslookup:
|
|
driver = dnslookup
|
|
domains = ! +local_domains
|
|
transport = remote_smtp
|
|
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8
|
|
no_more
|
|
<% end -%>
|
|
|
|
# The remaining routers handle addresses in the local domain(s), that is those
|
|
# domains that are defined by "domainlist local_domains" above.
|
|
|
|
|
|
# This router handles aliasing using a linearly searched alias file with the
|
|
# name SYSTEM_ALIASES_FILE. When this configuration is installed automatically,
|
|
# the name gets inserted into this file from whatever is set in Exim's
|
|
# build-time configuration. The default path is the traditional /etc/aliases.
|
|
# If you install this configuration by hand, you need to specify the correct
|
|
# path in the "data" setting below.
|
|
#
|
|
##### NB You must ensure that the alias file exists. It used to be the case
|
|
##### NB that every Unix had that file, because it was the Sendmail default.
|
|
##### NB These days, there are systems that don't have it. Your aliases
|
|
##### NB file should at least contain an alias for "postmaster".
|
|
#
|
|
# If any of your aliases expand to pipes or files, you will need to set
|
|
# up a user and a group for these deliveries to run under. You can do
|
|
# this by uncommenting the "user" option below (changing the user name
|
|
# as appropriate) and adding a "group" option if necessary. Alternatively, you
|
|
# can specify "user" on the transports that are used. Note that the transports
|
|
# listed below are the same as are used for .forward files; you might want
|
|
# to set up different ones for pipe and file deliveries from aliases.
|
|
|
|
system_aliases:
|
|
driver = redirect
|
|
allow_fail
|
|
allow_defer
|
|
data = ${lookup{$local_part}lsearch{/etc/aliases}}
|
|
# user = exim
|
|
file_transport = address_file
|
|
pipe_transport = address_pipe
|
|
|
|
# .forward files are not supported --jeblair
|
|
|
|
# This router matches local user mailboxes. If the router fails, the error
|
|
# message is "Unknown user".
|
|
|
|
# If you want this router to treat local parts with suffixes introduced by "-"
|
|
# or "+" characters as if the suffixes did not exist, uncomment the two local_
|
|
# part_suffix options. Then, for example, xxxx-foo@your.domain will be treated
|
|
# in the same way as xxxx@your.domain by this router.
|
|
|
|
localuser:
|
|
driver = accept
|
|
check_local_user
|
|
# local_part_suffix = +* : -*
|
|
# local_part_suffix_optional
|
|
transport = local_delivery
|
|
cannot_route_message = Unknown user
|
|
|
|
|
|
######################################################################
|
|
# TRANSPORTS CONFIGURATION #
|
|
######################################################################
|
|
# ORDER DOES NOT MATTER #
|
|
# Only one appropriate transport is called for each delivery. #
|
|
######################################################################
|
|
|
|
# A transport is used only when referenced from a router that successfully
|
|
# handles an address.
|
|
|
|
begin transports
|
|
|
|
|
|
# This transport is used for delivering messages over SMTP connections.
|
|
|
|
remote_smtp:
|
|
driver = smtp
|
|
|
|
|
|
# This transport is used for local delivery to user mailboxes in traditional
|
|
# BSD mailbox format. By default it will be run under the uid and gid of the
|
|
# local user, and requires the sticky bit to be set on the /var/mail directory.
|
|
# Some systems use the alternative approach of running mail deliveries under a
|
|
# particular group instead of using the sticky bit. The commented options below
|
|
# show how this can be done.
|
|
|
|
local_delivery:
|
|
driver = appendfile
|
|
file = /var/mail/$local_part
|
|
delivery_date_add
|
|
envelope_to_add
|
|
return_path_add
|
|
group = mail
|
|
mode = 0660
|
|
|
|
|
|
# This transport is used for handling pipe deliveries generated by alias or
|
|
# .forward files. If the pipe generates any standard output, it is returned
|
|
# to the sender of the message as a delivery error. Set return_fail_output
|
|
# instead of return_output if you want this to happen only when the pipe fails
|
|
# to complete normally. You can set different transports for aliases and
|
|
# forwards if you want to - see the references to address_pipe in the routers
|
|
# section above.
|
|
|
|
address_pipe:
|
|
driver = pipe
|
|
return_output
|
|
|
|
|
|
# This transport is used for handling deliveries directly to files that are
|
|
# generated by aliasing or forwarding.
|
|
|
|
address_file:
|
|
driver = appendfile
|
|
delivery_date_add
|
|
envelope_to_add
|
|
return_path_add
|
|
|
|
|
|
# This transport is used for handling autoreplies generated by the filtering
|
|
# option of the userforward router.
|
|
|
|
address_reply:
|
|
driver = autoreply
|
|
|
|
<% if @mailman_domains.length > 0 -%>
|
|
mailman_transport:
|
|
driver = pipe
|
|
command = MM_WRAP \
|
|
'${if def:local_part_suffix \
|
|
{${sg{$local_part_suffix}{-(\\w+)(\\+.*)?}{\$1}}} \
|
|
{post}}' \
|
|
$local_part
|
|
current_directory = MM_HOME
|
|
home_directory = MM_HOME
|
|
user = MM_UID
|
|
group = MM_GID
|
|
|
|
# Mailman VERP envelope sender address formatting. This seems not to use
|
|
# quoted-printable encoding of the address, but instead just replaces the
|
|
# '@' in the recipient address with '='.
|
|
#
|
|
mailman_verp_smtp:
|
|
driver = smtp
|
|
# put recipient address into return_path
|
|
return_path = \
|
|
${local_part:$return_path}+$local_part=$domain@${domain:$return_path}
|
|
# must restrict to one recipient at a time
|
|
max_rcpt = 1
|
|
# Errors-To: may carry old return_path
|
|
headers_remove = Errors-To
|
|
headers_add = Errors-To: ${return_path}
|
|
<% end -%>
|
|
|
|
######################################################################
|
|
# RETRY CONFIGURATION #
|
|
######################################################################
|
|
|
|
begin retry
|
|
|
|
# This single retry rule applies to all domains and all errors. It specifies
|
|
# retries every 15 minutes for 2 hours, then increasing retry intervals,
|
|
# starting at 1 hour and increasing each time by a factor of 1.5, up to 16
|
|
# hours, then retries every 6 hours until 4 days have passed since the first
|
|
# failed delivery.
|
|
|
|
# WARNING: If you do not have any retry rules at all (this section of the
|
|
# configuration is non-existent or empty), Exim will not do any retries of
|
|
# messages that fail to get delivered at the first attempt. The effect will
|
|
# be to treat temporary errors as permanent. Therefore, DO NOT remove this
|
|
# retry rule unless you really don't want any retries.
|
|
|
|
# Address or Domain Error Retries
|
|
# ----------------- ----- -------
|
|
|
|
* * F,2h,15m; G,16h,1h,1.5; F,4d,6h
|
|
|
|
|
|
|
|
######################################################################
|
|
# REWRITE CONFIGURATION #
|
|
######################################################################
|
|
|
|
# There are no rewriting specifications in this default configuration file.
|
|
|
|
begin rewrite
|
|
|
|
|
|
|
|
######################################################################
|
|
# AUTHENTICATION CONFIGURATION #
|
|
######################################################################
|
|
|
|
# The following authenticators support plaintext username/password
|
|
# authentication using the standard PLAIN mechanism and the traditional
|
|
# but non-standard LOGIN mechanism, with Exim acting as the server.
|
|
# PLAIN and LOGIN are enough to support most MUA software.
|
|
#
|
|
# These authenticators are not complete: you need to change the
|
|
# server_condition settings to specify how passwords are verified.
|
|
# They are set up to offer authentication to the client only if the
|
|
# connection is encrypted with TLS, so you also need to add support
|
|
# for TLS. See the global configuration options section at the start
|
|
# of this file for more about TLS.
|
|
#
|
|
# The default RCPT ACL checks for successful authentication, and will accept
|
|
# messages from authenticated users from anywhere on the Internet.
|
|
|
|
begin authenticators
|
|
|
|
# PLAIN authentication has no server prompts. The client sends its
|
|
# credentials in one lump, containing an authorization ID (which we do not
|
|
# use), an authentication ID, and a password. The latter two appear as
|
|
# $auth2 and $auth3 in the configuration and should be checked against a
|
|
# valid username and password. In a real configuration you would typically
|
|
# use $auth2 as a lookup key, and compare $auth3 against the result of the
|
|
# lookup, perhaps using the crypteq{}{} condition.
|
|
|
|
#PLAIN:
|
|
# driver = plaintext
|
|
# server_set_id = $auth2
|
|
# server_prompts = :
|
|
# server_condition = Authentication is not yet configured
|
|
# server_advertise_condition = ${if def:tls_cipher }
|
|
|
|
# LOGIN authentication has traditional prompts and responses. There is no
|
|
# authorization ID in this mechanism, so unlike PLAIN the username and
|
|
# password are $auth1 and $auth2. Apart from that you can use the same
|
|
# server_condition setting for both authenticators.
|
|
|
|
#LOGIN:
|
|
# driver = plaintext
|
|
# server_set_id = $auth1
|
|
# server_prompts = <| Username: | Password:
|
|
# server_condition = Authentication is not yet configured
|
|
# server_advertise_condition = ${if def:tls_cipher }
|
|
|
|
######################################################################
|
|
# CONFIGURATION FOR local_scan() #
|
|
######################################################################
|
|
|
|
# If you have built Exim to include a local_scan() function that contains
|
|
# tables for private options, you can define those options here. Remember to
|
|
# uncomment the "begin" line. It is commented by default because it provokes
|
|
# an error with Exim binaries that are not built with LOCAL_SCAN_HAS_OPTIONS
|
|
# set in the Local/Makefile.
|
|
|
|
# begin local_scan
|
|
|
|
|
|
# End of Exim configuration file
|