[Dovecot] Few problem with pop3

[Roberto Tagliaferri - Tosnet srl]

Hi, i've upgraded from 1.0.5 to 1.1.2 on 2 server and work fine for user 
that grab email on client, but some customer (that leave the email on 
server) have 2 problems.

Some client can't read new mail:
dovecot: Aug 19 11:00:46 Info: pop3-login: Login: user=<agenzia>, 
method=PLAIN, rip=xxx, lip=91.102.48.12
dovecot: Aug 19 11:00:46 Info: POP3(agenzia): Disconnected: Logged out 
top=0/0, retr=0/0, del=0/21, size=1200006
dovecot: Aug 19 11:01:22 Info: pop3-login: Login: user=<agenzia>, 
method=PLAIN, rip=xxx, lip=91.102.48.12
dovecot: Aug 19 11:01:23 Info: POP3(agenzia): Disconnected: Logged out 
top=0/0, retr=0/0, del=0/22, size=1219860
dovecot: Aug 19 11:04:21 Info: pop3-login: Login: user=<agenzia>, 
method=PLAIN, rip=xxx, lip=91.102.48.12
dovecot: Aug 19 11:04:22 Info: POP3(agenzia): Disconnected: Logged out 
top=0/0, retr=0/0, del=0/25, size=1277510

other client reread old email
dovecot: Aug 18 13:09:30 Info: POP3(soggiorno): Disconnected: Logged out 
top=0/0, retr=1/9885, del=0/28, size=270604
dovecot: Aug 18 13:21:15 Info: POP3(soggiorno): Disconnected: Logged out 
top=0/0, retr=1/9885, del=0/28, size=270604
dovecot: Aug 18 16:06:10 Info: POP3(soggiorno): Disconnected: Logged out 
top=0/0, retr=1/1218, del=0/28, size=270604
dovecot: Aug 18 16:09:08 Info: POP3(soggiorno): Disconnected: Logged out 
top=0/0, retr=1/1218, del=0/28, size=270604
dovecot: Aug 18 17:09:49 Info: POP3(soggiorno): Disconnected: Logged out 
top=0/0, retr=1/2479, del=0/29, size=298926
dovecot: Aug 18 17:12:18 Info: POP3(soggiorno): Disconnected: Logged out 
top=0/0, retr=2/2513, del=0/29, size=298926
dovecot: Aug 18 17:32:59 Info: POP3(soggiorno): Disconnected: Logged out 
top=0/0, retr=1/1321, del=0/29, size=298926
dovecot: Aug 18 17:58:46 Info: POP3(soggiorno): Disconnected: Logged out 
top=0/0, retr=1/1321, del=0/29, size=298926

Dovecot on linux, ext3 fs (the 2 server is similar, one with real users 
and one with virtual users on pgsql), only pop3 (with mbox file)


root at mx:~# dovecot -n
# 1.1.2: /usr/local/etc/dovecot.conf
base_dir: /var/run/dovecot/
log_path: /var/log/poplog
info_log_path: /var/log/poplog
protocols: pop3
ssl_disable: yes
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/pop3-login
login_processes_count: 4
verbose_proctitle: yes
mail_access_groups: mail
mail_location: mbox:/var/empty:INBOX=/var/spool/mail/%u:INDEX=MEMORY
mail_executable: /usr/local/libexec/dovecot/pop3
mail_plugin_dir: /usr/local/lib/dovecot/pop3
pop3_client_workarounds: oe-ns-eoh  outlook-no-nuls
auth default:
  mechanisms: plain login
  verbose: yes
  passdb:
    driver: sql
    args: /usr/local/etc/dovecot-sql.conf
  userdb:
    driver: sql
    args: /usr/local/etc/dovecot-sql.conf
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
      group: postdrop

root at smtp:~# dovecot -n
# 1.1.2: /usr/local/etc/dovecot.conf
base_dir: /var/run/dovecot/
log_path: /var/log/poplog
info_log_path: /var/log/poplog
protocols: pop3
ssl_disable: yes
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/pop3-login
login_processes_count: 4
verbose_proctitle: yes
mail_access_groups: mail
mail_location: mbox:/var/empty:INBOX=/var/spool/mail/%u:INDEX=MEMORY
mail_executable: /usr/local/libexec/dovecot/pop3
mail_plugin_dir: /usr/local/lib/dovecot/pop3
pop3_client_workarounds: oe-ns-eoh  outlook-no-nuls
auth default:
  mechanisms: plain login
  verbose: yes
  passdb:
    driver: shadow
  userdb:
    driver: passwd
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
      group: postdrop



-- 
Roberto Tagliaferri
Responsabile Progettazione & Produzione
TosNet s.r.l. - Internet Service Provider
r.tagliaferri at tosnet.it
www.tosnet.it