Authentication lost within session

[Marc Roos]

When I open the mail client (thunderbird), I can access the mailboxes 
and all of a sudden, I am loosing the authenticated session. Any idea's 
where to look?




Jan 17 12:42:04 mail04 dovecot: imap-login: Login: user=<usertest>, 
method=PLAIN, rip=192.168.10.219, lip=192.168.10.44, mpid=13403, TLS, 
session=<NsYo4qV/CNfAqArb>
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Loading modules 
from directory: /usr/lib64/dovecot
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Module loaded: 
/usr/lib64/dovecot/lib15_notify_plugin.so
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Module loaded: 
/usr/lib64/dovecot/lib20_listescape_plugin.so
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Effective 
uid=8267, gid=231, home=/home/popusers/usertest
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Namespace inbox: 
type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, 
subscriptions=yes 
location=mbox:~/mail:INBOX=/var/spool/mail/usertest:CONTROL=~/mail/contr
ol:INDEX=/var/dovecot/usertest/index:LAYOUT=maildir++
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: maildir++: 
root=/home/popusers/usertest/mail, index=/var/dovecot/usertest/index, 
indexpvt=, control=/home/popusers/usertest/mail/control, 
inbox=/var/spool/mail/usertest, alt=
Jan 17 12:42:04 mail04 dovecot: imap-login: Login: user=<usertest>, 
method=PLAIN, rip=192.168.10.219, lip=192.168.10.44, mpid=13404, TLS, 
session=<yRkp4qV/CtfAqArb>
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Loading modules 
from directory: /usr/lib64/dovecot
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Module loaded: 
/usr/lib64/dovecot/lib15_notify_plugin.so
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Module loaded: 
/usr/lib64/dovecot/lib20_listescape_plugin.so
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: INBOX: Mailbox 
opened because: SELECT
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Effective 
uid=8267, gid=231, home=/home/popusers/usertest
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: Namespace inbox: 
type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, 
subscriptions=yes 
location=mbox:~/mail:INBOX=/var/spool/mail/usertest:CONTROL=~/mail/contr
ol:INDEX=/var/dovecot/usertest/index:LAYOUT=maildir++
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: maildir++: 
root=/home/popusers/usertest/mail, index=/var/dovecot/usertest/index, 
indexpvt=, control=/home/popusers/usertest/mail/control, 
inbox=/var/spool/mail/usertest, alt=
Jan 17 12:42:04 mail04 dovecot: imap(usertest): Debug: INBOX/test: 
Mailbox opened because: SELECT
Jan 17 12:42:12 mail04 dovecot: imap-login: Login: user=<usertest>, 
method=PLAIN, rip=192.168.10.219, lip=192.168.10.44, mpid=13405, TLS, 
session=<MOKk4qV/C9fAqArb>
Jan 17 12:42:12 mail04 dovecot: imap(usertest): Debug: Loading modules 
from directory: /usr/lib64/dovecot
Jan 17 12:42:12 mail04 dovecot: imap(usertest): Debug: Module loaded: 
/usr/lib64/dovecot/lib15_notify_plugin.so
Jan 17 12:42:12 mail04 dovecot: imap(usertest): Debug: Module loaded: 
/usr/lib64/dovecot/lib20_listescape_plugin.so
Jan 17 12:42:12 mail04 dovecot: imap(usertest): Debug: Effective 
uid=8267, gid=231, home=/home/popusers/usertest
Jan 17 12:42:12 mail04 dovecot: imap(usertest): Debug: Namespace inbox: 
type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, 
subscriptions=yes 
location=mbox:~/mail:INBOX=/var/spool/mail/usertest:CONTROL=~/mail/contr
ol:INDEX=/var/dovecot/usertest/index:LAYOUT=maildir++
Jan 17 12:42:12 mail04 dovecot: imap(usertest): Debug: maildir++: 
root=/home/popusers/usertest/mail, index=/var/dovecot/usertest/index, 
indexpvt=, control=/home/popusers/usertest/mail/control, 
inbox=/var/spool/mail/usertest, alt=
Jan 17 12:42:12 mail04 dovecot: imap(usertest): Debug: Drafts: Mailbox 
opened because: SELECT
Jan 17 12:42:14 mail04 dovecot: auth-worker(13400): 
pam(usertest,192.168.10.219,<fLyv4qV/DNfAqArb>): pam_authenticate() 
failed: Authentication failure (password mismatch?)
Jan 17 12:42:22 mail04 dovecot: auth-worker(13400): 
pam(usertest,192.168.10.219,<fLyv4qV/DNfAqArb>): pam_authenticate() 
failed: Authentication failure (password mismatch?)
Jan 17 12:42:25 mail04 dovecot: auth-worker(13400): 
pam(usertest,192.168.10.219,<slYR46V/DdfAqArb>): pam_authenticate() 
failed: Authentication failure (password mismatch?)