fixes #911

Merge pull request #900 from mail-in-a-box/code_of_conduct

Signed-off-by: Marius Blüm <marius@lineone.io>

Merge https://github.com/mar1u5/mailinabox

fixes #901

closes #898

Signed-off-by: Marius Blüm <marius@lineone.io>

Signed-off-by: Marius Blüm <marius@lineone.io>

DavDroid's latest version's account configuration no longer just asked for a hostname. Its email address & password configuration mode did not work without a SRV record.

This is checked during preflight. See https://github.com/mail-in-a-box/mailinabox/issues/885 (#889)

Added information about API endpoints

add fail2ban jails for ownCloud, postfix submission, roundcube, and the Mail-in-a-Box management daemon

Small extension to mail log management script

Remove owncloud log configuration from initial setup and only apply it during the configuration updates. This applies to both the timezone and the log format

Owncloud needs more time to detect blocks. It doesn't respond as fast as the other services. Also owncloud logs UTC (since latest update) even though the timezone is not UTC. Also to detect a block, we get a timeout instead of a refused)

for DANE, the smtp_tls_mandatory_protocols setting seems like it also needs to be set (unlike the cipher settings, this isn't documented to be in addition to the non-mandatory setting)

outbound SMTP connections should use the same TLS settings as inbound: drop SSLv2, SSLv3, anonymous ciphers, RC4

Per http://googleappsupdates.blogspot.ro/2016/05/disabling-support-for-sslv3-and-rc4-for.html, Google is about to do the same.

fixes #611

add fail2ban jails for ownCloud, postfix submission, roundcube, and the Mail-in-a-Box management daemon

(tests squashed into this commit by josh)

closes #840

There hasn't been a sqlite migration yet, since Mail-in-a-Box's creation, but with Roundcube 1.2 there will be.