SOLVED Webmail Unexpected condition from IMAP server

[Rehan_1990]

I am using cPanel server and facing issue with webmail for couple of days. After logging to webmail, it gives error "Unexpected condition from IMAP server. Possible mailbox corruption.". I have tried "Repair Mailbox Permissions" option as well as fix permission script, but nothing worked for me.
After restarting dovecot service, this issue fix for some time, i have to restart dovecot service again and again to avoid this issue.
Is there any permanent solution by which i can solve this issue permanently ?

 

[cPanelMichael]

Hello,

Could you run the below command and let us know the output the next time this happens? EX:

ps aux | grep [d]ove | wc -l

Thank you.

 

[El Guaje]

Hi,

I'm in the same issues and don't know how to debug this, when this error appear I had restart service but it's just temporary.

I run this command and it showing the value about 700-1000. What can i do or what log I can check to know this error??

Thank you.

 

[cPanelMichael]

I run this command and it showing the value about 700-1000. What can i do or what log I can check to know this error??

You can browse to "WHM Home » Service Configuration » Mailserver Configuration" and see if increasing the "Maximum Number of Mail Processes" value from "512" to a higher value (e.g. 1024) helps solve the issue.

Thank you.

 

[Rehan_1990]

You can browse to "WHM Home » Service Configuration » Mailserver Configuration" and see if increasing the "Maximum Number of Mail Processes" value from "512" to a higher value (e.g. 1024) helps solve the issue.

Thank you.

After changing Mail Processes, is there any probability that, it can reduce server efficiency or generate unnecessary load on server ? Just a precautionary question

 

[cPanelMichael]

Hello,

Yes, it is possible the use of additional processes can lead to increased CPU or memory utilization. You may want to try increasing the value slightly over time to see how the system reacts.

Thank you.

 

[Rehan_1990]

Hello,

Yes, it is possible the use of additional processes can lead to increased CPU or memory utilization. You may want to try increasing the value slightly over time to see how the system reacts.

Thank you.

Hi, Thanks for your help. Increasing connection really solved my issue and i have not noticed unusual load spike as i have increased the value slightly over as you suggested.
Thanks again for your help.