Dovecot 2.4 release is a major upgrade
Logger event structure has changed, all messages are now
prefixed with:
"Login aborted: " <reason> "auth failed"
Maintain 2.3 support as many folks have yet to migrate,
community edition is still receiving cretial security patches
Dovecot 2.4.1
Python 3.12.10
Signed-off-by: Nic Boet <nic@boet.cc>
RFC 5322 2.1.1 requires <=998 chars per line.
If matches are included, and are very long lines,
the email will be rejected. Constructing the mail
as a message instead of a subpart (mimetext) fixes this
This patch allows the ban to be applied on the INPUT and the FORWARD chain at the time. May be useful at least on routing devices and on docker hosting machines.
Large set of fixes and enhancements for `systemd` and `auto` backends:
* fixes `systemd` bug with missing journal descriptor after rotation by reopening of journal if it is recognized as not alive (gh-3929)
* improve threaded clean-up of all filters, new thread functions `afterStop` (to force clean-up after stop) and `done`, invoking `afterStop` once
* ensure journal-reader is always closed (additional prevention against leaks and "too many open files"), thereby avoid sporadic segfault in systemd module (see https://github.com/systemd/python-systemd/issues/143)
* fixes `systemd` causing "too many open files" error for a lot of journal files and large amout of systemd jails (see new parameter `rotated` below, gh-3391);
* backend `systemd` extended with new parameter `rotated` (default `false`, as prevention against "too many open files"),
that allows to monitor only actual journals and ignore now a lot of rotated files by default; so can drastically reduce
amount of used file descriptors, normally to 1 or 2 descriptors per jail (gh-3391)
* implements automatic switch `backend = auto` to backend `systemd`, when the following is true (RFE gh-3768):
- no files matching `logpath` found for this jail;
- no `systemd_if_nologs = false` is specified for the jail (`true` by default);
- option `journalmatch` is set for the jail or its filter (otherwise it'd be too heavy to allow all auto-jails,
even if they have never been foreseen for journal monitoring);
(option `skip_if_nologs` will be ignored if we could switch backend to `systemd`)
