> > My guess is that I need to recompile and reinstall dovecot pidgeon > (dovecot-2.1-pigeonhole-0.3.0) as well as dovecot but cannot find any > documentation on this. > > Is my gues correct? > Is there anything else that is needed to upgrade from 2.1.1 to 2.1.5? Your guess is correct, always recompile sieve plugin when you upgrade dovecot. Cor