telnet 192.168.1.2 143
* OK Waiting for authentication process to respond..
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN] Dovecot ready.
a login someUserLogin supersecretpassword
* BAD Error in IMAP command received by server.
a login someUserLogin supersecretpassword
a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS] Logged in

>dovecot -n
# 2.0.19: /etc/dovecot/dovecot.conf
# OS: Linux 3.5.0-34-generic x86_64 Ubuntu 12.04.2 LTS
auth_debug = yes
auth_verbose = yes
disable_plaintext_auth = no
login_trusted_networks = 192.168.1.0/16
mail_location = maildir:~/Maildir
passdb {
  driver = pam
}
protocols = " imap"
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  driver = passwd
}

Jul  3 12:27:51 linuxServer dovecot: auth: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth
Jul  3 12:27:51 linuxServer dovecot: auth: Debug: auth client connected (pid=23499)
Jul  3 12:28:06 linuxServer dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=imap#011secured#011no-penalty#011lip=192.168.1.2#011rip=192.169.1.3#011lport=143#011rport=50438#011resp=<hidden>
Jul  3 12:28:06 linuxServer dovecot: auth-worker: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth
Jul  3 12:28:06 linuxServer dovecot: auth-worker: Debug: pam(someUserLogin,192.169.1.3): lookup service=dovecot
Jul  3 12:28:06 linuxServer dovecot: auth-worker: Debug: pam(someUserLogin,192.169.1.3): #1/1 style=1 msg=Password:
Jul  3 12:28:06 linuxServer dovecot: auth: Debug: client out: OK#0111#011user=someUserLogin
Jul  3 12:28:06 linuxServer dovecot: auth: Debug: master in: REQUEST#0111823473665#01123499#0111#0113a58da53e091957d3cd306ac4114f0b9
Jul  3 12:28:06 linuxServer dovecot: auth: Debug: passwd(someUserLogin,192.169.1.3): lookup
Jul  3 12:28:06 linuxServer dovecot: auth: Debug: master out: USER#0111823473665#011someUserLogin#011system_groups_user=someUserLogin#011uid=1000#011gid=1000#011home=/home/someUserLogin
Jul  3 12:28:06 linuxServer dovecot: imap-login: Login: user=<someUserLogin>, method=PLAIN, rip=192.169.1.3, lip=192.168.1.2, mpid=23503, secured