[Resolved] Error-Maximum number of connections from user+IP exceeded through POP3 login.

If you are trying to connect POP3 connection and getting connection refused error on server with this message :
"Maximum number of connections from user+IP"

Kindly check error logs through :

# /var/log/maillog
# /var/log/dovecot.log

Click to expand...

Please check the below logs.

14 14:25:58 dovecot: pop3-login: Maximum number of connections from user+IP exceeded (mail_max_userip_connections=5): user=, method=PLAIN, rip=122.85.6.58, lip=49.85.6.3

Click to expand...

Solution for this error :

To resolve this error you have to increase the value of "mail_max_userip_connections" from default.
To Edit run this command :

# /etc/dovecot.conf

Click to expand...

Now, check the parameter “mail_max_userip_connections” and increase it's value to higher form default.

mail_max_userip_connections = 20

Now save the file and restart exim.

# /etc/init.d/exim

Click to expand...