[Dovecot] IMAP error with squirrelmail - how to debug?

When moving messages with squirrelmail (or kmail), I get the following error:

ERROR : Could not complete request. Query: COPY 3 "INBOX" Reason Given: Unexpected EOF

According to the config I switched on rawlog:

# This would write rawlogs into ~/dovecot.rawlog/ directory: mail_executable = /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap

rawlog.c was altered in order to have /tmp as HOME. But I see no logfiles being generated.

Environment: lastest dovecot from CVS, vpopmail and local users (error with both types).

Another issue:

Ocassionally the auth process dies:

Feb 26 21:08:49 servername dovecot: child 28641 (auth) killed with signal 11

Cheers, Ray

Raymond Scholz - rscholz@zonix.de - GnuPG/PGP - http://www.zonix.de/