Hi, just to let you know to all the people testing dovecot in a RHEL 6.1 setup where nodes are Active/Active and sharing a GFS2 filesystem that there is a bug on latest rhel6.1 GFS2 kernel modules, and latest updates in 6.0 wich makes dovecot crash a GFS2 filesystem, with a corruption and other related errors, redhat people have posted a fix for the kernel wich is in QA:

https://bugzilla.redhat.com/show_bug.cgi?id=712139

Just hope this helps somebody to don't waste many nights looking for a problem in dovecot config :) as I did...

best regards, Aliet