Discarding duplicate emails send to groups (again)

[mrmarkuz (Markus Neuberger)]

@bradjtrammell

I’m not sure if something changed between when it was implemented and now, however when adding the sieve_extensions = +imapflags +editheader +vnd.dovecot.duplicate to /etc/e-smith/templates-custom/etc/dovecot/dovecot.conf/60lmtp and using the signal-event nethserver-mail-server-update command to regenerate the configuration files, I’m met with the following error when viewing the status of Dovecot.

@bradjtrammell

Nov 09 23:38:08 network dovecot[12867]: doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf line 346: Unknown setting: sieve_extensions

You seem to still use the custom template /etc/e-smith/templates-custom/etc/dovecot/dovecot.conf/60lmtp but it isn’t needed anymore as explained here:

Discarding duplicate emails send to groups

As explained in the above link, from dovecot 2.2.18 the duplicate plugin is named just “duplicate” (instead of vnd.dovecot.duplicate) and available by default so the custom template /etc/e-smith/templates-custom/etc/dovecot/dovecot.conf/60lmtp is not needed anymore. So creating the file /var/lib/nethserver/sieve-scripts/after.sieve with following content should be enough. # do not deliver duplicate mails require "duplicate"; if duplicate { discard; stop; } To be sure restart the ma…

Just remove it and rerun signal-event nethserver-mail-server-update