HOWTO: Dovecot 1.2.9 + sieve + quota

[Undo]

Maybe it would be interesting for thoses who have the same error message than me during the installation of ISPConfig on Debian Lenny with Dovecot 1.2 .x (from backports) :

Restarting IMAP/POP3 mail server: dovecotError: Error in configuration file /etc/dovecot/dovecot.conf line 681: Unknown setting: sieve
Fatal: Invalid configuration in /etc/dovecot/dovecot.conf

In fact there is a problem in the dovecot.conf.

The protocol "managesieve" is now called "lda" and the plugin "cmusieve" is called "sieve" from V1.2 of Dovecot.

So you'll have to replace this :

protocol managesieve {

By that :

protocol lda {

And this :

mail_plugins = cmusieve quota

(be careful : it's the mail_plugins directive INSIDE THE "protocol lda {" )

By that :

mail_plugins = sieve quota

After that, Dovecot was able to start for me.