Hi, we have installed a cyrus-imapd server on a centos 6.6 architecture. Unfortunatly our service has some bugs: 1. we stop the service, process cyrus files remain in /var/lib/imap/proc 2. we have many errors in /var/log/maillog -------------------------------------------------------------------------- Mar 29 15:53:00 mailbox lmtpunix[20870]: DBERROR db4: Logging region out of memory; you may need to increase its size Mar 29 15:53:00 mailbox lmtpunix[20870]: DBERROR: opening /var/lib/imap/deliver.db: Cannot allocate memory Mar 29 15:53:00 mailbox lmtpunix[20870]: DBERROR: opening /var/lib/imap/deliver.db: cyrusdb error Mar 29 15:53:00 mailbox lmtpunix[20870]: FATAL: lmtpd: unable to init duplicate delivery database Mar 29 15:53:00 mailbox master[27585]: process 20870 exited, status 75 Mar 29 15:53:00 mailbox master[27585]: service lmtpunix pid 20870 in READY state: terminated abnormally Mar 29 15:53:00 mailbox master[20871]: about to exec /usr/lib/cyrus-imapd/lmtpd Mar 29 15:53:00 mailbox lmtpunix[20871]: executed Mar 29 15:53:00 mailbox lmtpunix[20871]: DBERROR db4: Logging region out of memory; you may need to increase its size --------------------------------------------------------------------------- We setup a cyrus db configuration /var/lib/imap/db/DB_CONFIG in this way: set_cachesize 0 2097152 1 set_lg_regionmax 1048576 but the problem is always present. Please can you help us? Thank a lot in advance. Regards D. Bortolotti & A. Monducci