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* IMAP: Update role to Debian Buster.Guilhem Moulin2020-05-192
| | | | | | | | For `ssl_cipher_list` we pick the suggested value from https://ssl-config.mozilla.org/#server=dovecot&version=2.3.9&config=intermediate&openssl=1.1.1d At the moment it's equivalent (modulo order) to adding ‘EDH+AESGCM+aRSA’ to ‘EECDH+AESGCM:EECDH+CHACHA20!MEDIUM!LOW!EXP!aNULL!eNULL’.
* dovecot: raise default_vsz_limit from 256MB to 512MB.Guilhem Moulin2019-05-231
| | | | | | | | | This avoids lmtp errors like Error: mmap(size=0) failed with file […] dbox-Mails/dovecot.index.cache: Cannot allocate memory See https://www.dovecot.org/list/dovecot/2012-August/137569.html and https://www.dovecot.org/list/dovecot/2011-December/132455.html .
* Update 'IMAP', 'MSA' and 'LDAP-provider' roles to Debian Stretch.Guilhem Moulin2018-12-091
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* Dovecot: Explicitly disable LDAP.Guilhem Moulin2016-12-081
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* Postfix: avoid hardcoding the instance names.Guilhem Moulin2016-07-101
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* dovecot: don't listen on the IP dedicated for IPSec when there is a single host.Guilhem Moulin2016-05-231
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* dovecot: also listen on the virtual IP dedicated to IPSec.Guilhem Moulin2016-05-221
(On port 143.) Moreover, add the whole IPSec virtual subnet to ‘login_trusted_networks’ since our IPSec tunnels provide end-to-end encryption and we therefore don't need the extra SSL/TLS protection.