[Dovecot] pop3 seems to be down sometimes

[Thomas Balsfulland]

hello guys,

i am using dovecot v1.0.rc15-1~bpo1 from backports.org on a debian sarge
machine as pop3 pop3s imap and imaps server.
since some days it seems the pop-server will stop randomly. noone is
able get mails, but imap is still working. the logfile says:

dovecot: 2007-03-19 16:44:19 Info: auth(default): password(user1 at domain.de,212.100.55.y): Requested HMAC-MD5 scheme, but we have only MD5
dovecot: 2007-03-19 16:44:20 Info: pop3-login: Login: user=<user1 at domain.de>, method=PLAIN, rip=212.100.55.y, lip=x.x.x.x, TLS
dovecot: 2007-03-19 16:44:23 Info: POP3(user1 at domain.de): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
dovecot: 2007-03-19 16:44:24 Info: auth(default): password(user2 at domain.de,212.100.55.y): Requested HMAC-MD5 scheme, but we have only MD5
dovecot: 2007-03-19 16:44:26 Info: pop3-login: Login: user=<user2 at domain.de>, method=PLAIN, rip=212.100.55.y, lip=x.x.x.x, TLS
dovecot: 2007-03-19 16:44:29 Info: POP3(user2 at domain.de): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
dovecot: 2007-03-19 16:47:09 Info: pop3-login: Disconnected: Inactivity: rip=84.181.7.y, lip=x.x.x.x
dovecot: 2007-03-19 16:48:51 Info: pop3-login: Disconnected: Inactivity: rip=84.135.196.y, lip=x.x.x.x
dovecot: 2007-03-19 16:49:51 Info: pop3-login: Disconnected: Inactivity: rip=84.135.196.y, lip=x.x.x.x
dovecot: 2007-03-19 16:50:36 Info: pop3-login: Disconnected: Inactivity: rip=212.100.55.y, lip=x.x.x.x
dovecot: 2007-03-19 16:50:51 Info: pop3-login: Disconnected: Inactivity: rip=84.135.196.y, lip=x.x.x.x
dovecot: 2007-03-19 16:50:52 Info: pop3-login: Disconnected: Inactivity: rip=84.181.7.y, lip=x.x.x.x
dovecot: 2007-03-19 18:06:58 Info: imap-login: Disconnected: rip=195.71.y.z, lip=x.x.x.x, TLS
dovecot: 2007-03-19 18:06:58 Info: IMAP(user3): Disconnected: Logged out
dovecot: 2007-03-19 18:08:12 Info: pop3-login: Disconnected: Inactivity: rip=84.181.80.y, lip=x.x.x.x
dovecot: 2007-03-19 18:08:31 Info: pop3-login: Disconnected: Inactivity: rip=84.135.196.y, lip=x.x.x.x
dovecot: 2007-03-19 18:09:02 Info: pop3-login: Disconnected: Inactivity: rip=212.100.55.y, lip=x.x.x.x

i dont know when and why this problem occurs.


here is my config:

protocols = imaps imap pop3s pop3
protocol imap {
     listen = 127.0.0.1
     ssl_listen = x.x.x.x
}
protocol pop3 {
     listen = x.x.x.x
     ssl_listen = x.x.x.x
   }
disable_plaintext_auth = no
log_path = /var/log/dovecot.log
info_log_path = /var/log/dovecot.log
log_timestamp = "%Y-%m-%d %H:%M:%S "
ssl_disable = no
ssl_cert_file = /etc/ssl/certs/dovecot.pem
ssl_key_file = /etc/ssl/private/dovecot.pem
mail_location = mbox:/home/vmail/%d/%n:INBOX=/home/vmail/%d/%n:INDEX=/home/vmail/index/%u
protocol imap {
mail_plugins = quota imap_quota
  imap_client_workarounds = outlook-idle delay-newmail
}

protocol pop3 {
  pop3_uidl_format = %08Xu%08Xv
  pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
}
auth_verbose = yes
auth default {
  mechanisms = plain digest-md5 cram-md5
  passdb passwd-file {
    args = /etc/dovecot/mailuser
  }
  userdb passwd-file {
    args = /etc/dovecot/mailuser
  }
  user = root
}


are there any ideas?

regards
  thomas


-- 
thomas balsfulland                           tbals at ctrl-c.de
                zwischen mut und dummheit liegt nur ein grat
            der sich durch das vorbereitetsein unterscheidet