* Tests have been updated to work with latest Molecule/Testinfra as

  part of the Ansible upgrade process.

* X.509 artefacts used during testing are now generated on the fly

  using `Gimmecert <https://gimmecert.readthedocs.io/>`_.

* ``mail_forwader`` role

  * The role now supports specifying the maximum mail message size

    limit for the SMTP server to accept via

    ``mail_message_size_limit`` role parameter.

* ``mail_server`` role

  * The role now supports specifying the maximum mail message size

    limit for the SMTP server to accept via

    ``mail_message_size_limit`` role parameter.

  * Mail server configuration has been slightly updated to better

    match what is currently the defaults in Debian Stretch.

* ``xmpp_server`` role

  * Server now supports blocking users via `XEP-0191: Blocking Command

# information on enabling SSL in the smtp client.

myhostname = {{ inventory_hostname }}

alias_maps = hash:/etc/aliases

alias_database = hash:/etc/aliases

myorigin = /etc/mailname

mydestination = {{ inventory_hostname }}, {{ inventory_hostname_short }}, localhost.localdomain, localhost

relayhost = {{ smtp_relay_host }}{% if smtp_relay_host and smtp_relay_host_port %}:{{ smtp_relay_host_port }}{% endif %}{{ '' }}

mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128

mailbox_command = procmail -a "$EXTENSION"

mailbox_size_limit = 0

recipient_delimiter = +

# Fall-back to using native lookups (/etc/hosts etc) if DNS lookup fails. Useful

# for local overrides of mail servers.

smtp_host_lookup = dns, native

# Explicitly set maximum allowed mail size that should be accepted.

message_size_limit = {{ mail_message_size_limit }}