Fix #356

Kristian Klausen authored May 05, 2021 and Jelle van der Waa committed May 08, 2021

Fix #321

George Rawlinson authored Mar 16, 2021 and Frederik Schwan committed Mar 19, 2021

According to upstream documentation[0], the configuration parameter
smtpd_tls_dh512_param_file will be ignored from the next release of
Postfix (3.6).

[0]: http://www.postfix.org/postconf.5.html#smtpd_tls_dh512_param_file

Frederik Schwan authored Dec 23, 2020 and Giancarlo Razzolini committed Dec 24, 2020

We did only use it for patchwork which is using fetchmail now.

Fix #213

Kristian Klausen authored Aug 02, 2020 and Sven-Hendrik Haase committed Nov 15, 2020

Switching to Rspamd has some advantages:
* It is probably faster than SA[1] (C + Lua vs Perl)
* We can reduce the number of moving parts. Rspamd has built-in DKIM
  signing, greylisting, DMARC checking to name a few
* It doesn't just mark the mail as spam/not-spam, it gives every mail a
  score and depending on the score it does either: nothing, greylist it,
  mark it as spam or reject it[2] (more actions is available and it can
  be tweaked)
* Replies whitelisting[3]
* It supports ARC signing, which can be useful
* A cool looking WebUi :)
* ... and more[4]...

[1] https://rspamd.com/doc/tutorials/migrate_sa.html#why-migrate-to-rspamd
[2] https://rspamd.com/doc/faq.html#what-are-rspamd-actions
[3] https://rspamd.com/doc/modules/replies.html
[4] https://rspamd.com/comparison.html

when deploying the postfix role, specify postfix_relayhost variable with the
hostname of the smtp smarthost to use for delivery. all outbound smtp mail
will be delivered via the specified host.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

postfix has autodetection for enabling it, but when it is enabled and
the remote doesn't support it, the mail bounces. Disable for now until
we actually have a need for it.
Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Forwards to an old IP, not needed any more.
Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Only a simple sending setup for now. This will be expanded to a full
mailserver later.
Signed-off-by: Florian Pritz <bluewind@xinu.at>