i checked maillog. find many errors. i searched it but i havn't found how to resolve it . any one can help ? Code: Nov 9 00:34:11 rhel4 master[28621]: process 32156 exited, status 75 Nov 9 00:34:11 rhel4 master[28621]: service lmtpunix pid 32156 in READY state: terminated abnormally Nov 9 00:34:11 rhel4 master[32164]: about to exec /usr/lib/cyrus-imapd/lmtpd Nov 9 00:34:11 rhel4 lmtpunix[32164]: DBERROR db4: Berkeley DB library configured to support only DB_PRIVATE environments Nov 9 00:34:11 rhel4 lmtpunix[32164]: DBERROR: dbenv->open '/var/lib/imap/db' failed: Invalid argument Nov 9 00:34:11 rhel4 lmtpunix[32164]: DBERROR: init() on berkeley Nov 9 00:34:11 rhel4 lmtpunix[32164]: executed Nov 9 00:34:11 rhel4 lmtpunix[32164]: DBERROR db4: environment not yet opened Nov 9 00:34:11 rhel4 lmtpunix[32164]: DBERROR: opening /var/lib/imap/deliver.db: Invalid argument Nov 9 00:34:11 rhel4 lmtpunix[32164]: DBERROR: opening /var/lib/imap/deliver.db: cyrusdb error Nov 9 00:34:11 rhel4 lmtpunix[32164]: FATAL: lmtpd: unable to init duplicate delivery database