[Dovecot] Dovecot problem

[Raphael Bittencourt S. Costa]

Helo all,

Yesterday dovecot began droping connections and there is nothing
conclusive in the log file, just the messagens below:

Sep  2 11:43:57 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.152.100.77, lip=10.0.3.1
Sep  2 11:44:02 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.204.69.20, lip=10.0.3.1
Sep  2 11:44:19 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.20.236.248, lip=10.0.3.1
Sep  2 11:44:21 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.83.2.206, lip=10.0.3.1
Sep  2 11:44:24 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.158.0.143, lip=10.0.3.1
Sep  2 11:44:25 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.52.200.131, lip=10.0.3.1
Sep  2 11:44:26 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.53.20.53, lip=10.0.3.1, TLS
Sep  2 11:44:35 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.0.90.117, lip=10.0.3.1
Sep  2 11:44:41 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=189.33.173.226, lip=10.0.3.1
Sep  2 11:44:45 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.82.135.42, lip=10.0.3.1
Sep  2 11:45:03 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.19.218.250, lip=10.0.3.1
Sep  2 11:45:04 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.83.2.206, lip=10.0.3.1
Sep  2 11:45:05 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.81.250.119, lip=10.0.3.1
Sep  2 11:45:21 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.171.100.233, lip=10.0.3.1
Sep  2 11:45:23 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=64.233.182.131, lip=10.0.3.1
Sep  2 11:45:27 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.43.185.179, lip=10.0.3.1
Sep  2 11:45:40 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.161.155.35, lip=10.0.3.1
Sep  2 11:45:41 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.62.149.20, lip=10.0.3.1
Sep  2 11:45:43 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.83.43.154, lip=10.0.3.1
Sep  2 11:45:47 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=134.171.76.5, lip=10.0.3.1
Sep  2 11:45:49 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.92.248.84, lip=10.0.3.1
Sep  2 11:45:55 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.21.114.120, lip=10.0.3.1
Sep  2 11:45:57 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.229.107.85, lip=10.0.3.1
Sep  2 11:46:04 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.204.69.20, lip=10.0.3.1
Sep  2 11:46:04 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.53.83.146, lip=10.0.3.1
Sep  2 11:46:05 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.152.100.77, lip=10.0.3.1
Sep  2 11:46:35 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.95.95.108, lip=10.0.3.1
Sep  2 11:46:35 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.0.90.117, lip=10.0.3.1
Sep  2 11:46:35 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=200.159.87.122, lip=10.0.3.1
Sep  2 11:46:40 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=83.131.211.245, lip=10.0.3.1
Sep  2 11:46:41 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.6.61.147, lip=10.0.3.1
Sep  2 11:47:13 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.1.153.202, lip=10.0.3.1
Sep  2 11:47:38 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=189.0.252.144, lip=10.0.3.1
Sep  2 11:47:39 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.20.236.248, lip=10.0.3.1
Sep  2 11:47:47 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=134.171.76.5, lip=10.0.3.1
Sep  2 11:47:51 relay01 dovecot: pop3-login: Disconnected: Inactivity:
method=PLAIN, rip=201.12.103.67, lip=10.0.3.1


After restart, everything just back working.

Any ideia?


Raphael Costa