In implementing the scheme I discussed a few days ago I came across this error. Because syncserver needs to delete all the mailboxes first, it crashes with "Too many open files" when the user has a lot of messages. I'm unsure if this is a cyrus or system error, but my guess is cyrus. Does syncserver take the "maxfds" argument? It takes a restart of the imapserver to get it back running properly. syncserver[25602]: Deleted mailbox user.xxx.yyy.zzz syncserver[25602]: Deleted mailbox user.xxx.bbb.ccc <etc> syncserver[25602]: IOERROR: creating quota file /var/imap/quota/m/user.xxx.NEW: Too many open files syncserver[25602]: DBERROR: error storing user.xxx: cyrusdb error syncserver[25602]: LOSTQUOTA: unable to record free of 35066 bytes in quota (null) syncserver[25602]: Deleted mailbox user.xxx.ddd.eee fff syncserver[25602]: IOERROR: opening quota file /var/imap/quota/m/user.xxx: Too many open files Thank you, Per olof ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html