Firewall banning IP due to "imap-login: Disconnected: Inactivity (no auth attempts in 180 secs)"

[microvax]

We have noticed that the IP of certain users are being banned due to this
problem with IMAP connectivity so I was wondering if you can suggest any setting
to avoid this.

 

[andrew.n]

I would look into why there was no auth attempts in 3 minutes...it seems something is going on with the email client itself or their connectivity.

 

[tusharthegamer]

Check your email clients syncing time. If its less than a minute that will create problem with server. Make sure you are using right credentials and the sync time for downloading emails is much longer than a minute. Also are there people with different IPs using the same email id?