On 3.7.2014, at 15.52, Hardy Flor <hf...@gmx.de> wrote: > I'm copy with imapsync (on the new server with dovecot) with a single user > all mails from a old server to the new server. > > The error-message ist after 20-30 minutes in the log, and I must restart the > imapsync. The next mail is normal store on the destination box.
What Dovecot version? Can you get a gdb backtrace? http://dovecot.org/bugreport.html