Dovecot stops and errors on 99-imap-sieve.conf

[iworx]

Updated this morning to all latests versions. Around noon my DoveCot stopped working and errored on

doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/99-imap-sieve.conf line 1: Unknown section name: plugin

I haven't changed anything over recent weeks/months. Anyone an idea or seeing the same?
For now I've moved the file to .bak so it is skipped.

 

[kristian]

Read through https://doc.dovecot.org/2.4.0/installation/upgrade/2.3-to-2.4.html and make sure you update any customization you have to work with the new syntax.

 

[iworx]

Fixed.