---
fixes:
  - |
    CAA records now allow the use of `+` prefixed subadresses like
    `security+caa@example.net` within mail urls.
    (https://www.rfc-editor.org/rfc/rfc5233.html#section-1)

    See `bug 1958533`_ for more information.

    .. _bug 1958533: https://bugs.launchpad.net/designate/+bug/1958533