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* Don't auto-create home directories when adding system users.Guilhem Moulin2015-06-071
| | | | | Unlike adduser(8), ansible's 'user' module copies skeletal configuration files even for system users (unless called with createhome=no).
* Use stunnel to secure the connection from the IMAP proxy to the IMAP server.Guilhem Moulin2015-06-071
| | | | | | | The reason is that we don't want to rely on CAs to verify the certificate of our server. Dovecot currently doesn't offer a way to match said cert against a local copy or known fingerprint. stunnel does.
* Replace IPSec tunnels by app-level ephemeral TLS sessions.Guilhem Moulin2015-06-072
| | | | | For some reason giraff doesn't like IPSec. App-level TLS sessions are less efficient, but thanks to ansible it still scales well.
* Fix syntax error.Guilhem Moulin2015-06-071
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* Generate certs for Dovecot and Nginx if they are not there.Guilhem Moulin2015-06-071
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* Create a nightly cron job to purge expunged messages.Guilhem Moulin2015-06-071
| | | | | This is required for dbox, see http://wiki2.dovecot.org/MailboxFormat/dbox#Multi-dbox
* Fix YAML syntax error.Guilhem Moulin2015-06-071
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* chown root:root /home/mail && chmod 0755 /home/mailGuilhem Moulin2015-06-071
| | | | | This ensures that Dovecot won't deliver messages if the disk hasn't been mounted, for instance.
* Decongestion potential bottlenecks on trivial_rewrite(8).Guilhem Moulin2015-06-071
| | | | | | | | | | | | | Which might be caused by slow LDAP lookups in transport_maps. Instead, we alias each addresses for which we want a custom transport to a dedicated "dummy" domain, and use a static (CDB) transport_maps to map said domains to their transport; the receiver can then use canonical(8) to restore the original envelope recipient. Since the alias resolution is performed by cleanup(8), which can run in parallel with other instances, it should decongestion bottlenecks under heavy loads. So far only the MX:es have been decongestioned. The list manager and the MDA should be treated as well.
* Ansible automatically creates parent directories.Guilhem Moulin2015-06-071
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* Make the *_maps file names uniform.Guilhem Moulin2015-06-071
| | | | That is, don't put a leading virtual_ or a trailing _maps in file names.
* wibbleGuilhem Moulin2015-06-071
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* typoGuilhem Moulin2015-06-071
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* Configure Sieve and ManageSieve.Guilhem Moulin2015-06-071
| | | | | Also, add the 'managesieve' RoundCube plugin to communicate with our server.
* Compile Spamassassin rules.Guilhem Moulin2015-06-071
| | | | See /usr/share/doc/spamassassin/README.Debian.gz
* Auto-update Spamassassin's ruleset.Guilhem Moulin2015-06-071
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* wibbleGuilhem Moulin2015-06-071
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* Configure dovecot's antispam filter.Guilhem Moulin2015-06-071
| | | | | | | | | | | | | Mails to be retrained are stored in the spooldir /home/mail/spamspool; later a daemon catches them up and feed them to sa-learn(1p). (On busy systems batch-process the learning should be much more efficient.) The folder transisition matrix along with the corresponding actions can be found there: http://hg.dovecot.org/dovecot-antispam-plugin/raw-file/5ebc6aae4d7c/doc/dovecot-antispam.7.txt See also dovecot-antispam(7).
* Enable IMAP virtual mailboxes.Guilhem Moulin2015-06-071
| | | | | | | | | | | | | | Using dovecot's 'virtual' plugin, cf. http://wiki2.dovecot.org/Plugins/Virtual The 'virtual/' namespace is visible in the NAMESPACE command (hidden=no), but not in LIST (list=no). This should ensure that the namespace isn't automatically synced by offlineimap, but nevertheless visible by roundcube, cf. http://trac.roundcube.net/ticket/1486796 http://mailman2.u.washington.edu/pipermail/imap-protocol/2010-May/001076.html
* Configure the content filter.Guilhem Moulin2015-06-073
| | | | | | | | | | | Antispam & antivirus, using ClamAV and SpamAssassin through Amavisd-new. Each user has his/her amavis preferences, and own Bayes filter (to maximize privacy). One question remains, though: how to set spamassassin's trusted_networks / internal_networks / msa_networks? It seems not obivious to get it write with IPSec and dynamic IPs. (Cf. https://wiki.apache.org/spamassassin/AwlWrongWay)
* Configure the Mail Delivery Agent.Guilhem Moulin2015-06-072
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* Configure the IMAP server.Guilhem Moulin2015-06-072
(For now, only LMTP and IMAP processes, without replication.)