1 Topic by moreni

  • moreni
  • Member
  • Offline
  • Registered: 2011-08-19
  • Posts: 40

Topic: Error Dovecot - client connections are being dropped

==== Provide required information ====
- iRedMail version and backend (LDAP/MySQL/PGSQL):
- Linux/BSD distribution name and version:
- Any related log? Log is helpful for troubleshooting.
====

Hello,

My dovecot is showing such a warning, after that, is no longer possible to connect to IMAP!


master: Warning: service(imap-login): process_limit (100) reached, client connections are being dropped

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2 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
  • iRedMail Developers
  • Offline
  • Registered: 2009-05-06
  • Posts: 30,788

Re: Error Dovecot - client connections are being dropped

You should at least show us basic info of your iRedMail server:

==== Provide required information ====
- iRedMail version and backend (LDAP/MySQL/PGSQL):
- Linux/BSD distribution name and version:
- Any related log? Log is helpful for troubleshooting.
====

Are you running Dovecot-2.x?  Default process_limit in Dovecot-2.x is 100, please try to add below setting in dovecot.conf:

service imap-login {
  process_limit = 512
}

You can modify '512' above to other integer number if you want. Restarting Dovecot service is required to enable this new setting.

Reference:
- http://wiki2.dovecot.org/LoginProcess
- http://wiki2.dovecot.org/Services