Hello

ISSUE: Intermittently getting username and password authentication in clients both OUTLOOK 2007 and latest Thunderbird, indicating that the client is not authenticated with the server. Ie the username and password dialogue constantly reappears.

This only appears as more users logged into the system.

TEMP FIX: Restart Dovecot.

LOG FILES

Mail.err

Jun 7 15:23:07 mail dovecot: auth-worker(default): ltdb: tdb(/var/lib/samba/group_mapping.ldb): tdb_mmap failed for size 77824 (Cannot allocate memory) Jun 7 15:23:10 mail dovecot: auth(default): worker-server(shepherb,81.152.245.13): Aborted: Worker process died unexpectedly Jun 7 15:23:10 mail dovecot: child 4268 (auth-worker) killed with signal 11 Jun 7 15:46:00 mail dovecot: auth-worker(default): ltdb: tdb(/var/lib/samba/group_mapping.ldb): tdb_mmap failed for size 77824 (Cannot allocate memory)

Earlier in the log Jun 7 12:08:02 mail dovecot: auth-worker(default): pam(xxx): pam_start() failed: Critical error - immediate abort

FILESYSTEM: EXT3 -

DOVECOT CONFIG: # 1.1.11: /etc/dovecot/dovecot.conf # OS: Linux 2.6.31-21-server x86_64 Ubuntu 9.10 log_timestamp: %Y-%m-%d %H:%M:%S listen: 127.0.0.1:143 ssl_listen: *:993 ssl_cert_file: /etc/exim4/exim.crt ssl_key_file: /etc/exim4/exim.key ssl_cipher_list: ALL:!LOW:!SSLv2 login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login login_greeting: Ready. mail_privileged_group: mail mail_location: maildir:~/Maildir auth default: worker_max_count: 60 worker_max_request_count: 25 passdb: driver: pam userdb: driver: passwd