1 Topic by misieq

  • misieq
  • Member
  • Offline
  • Registered: 2013-07-09
  • Posts: 109

Topic: Errors while retriving mail by pop3

==== Required information ====
- iRedMail version: 0.8.6
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): mysql
- Linux/BSD distribution name and version: centos 6.5
- Related log if you're reporting an issue:

====

Hello,
When i try to retreive mails using pop3 i get an pop-up window:
Sending of username did not succeed. Mail server servername.tld responded: +OK

In /var log/dovecot.log i can find:

Mar 18 13:27:32 pop3-login: Info: Disconnected: Connection queue full (disconnected while authenticating): method=PLAIN, rip=IP, lip=IP, TLS
Mar 18 13:27:32 pop3-login: Info: Disconnected: Connection queue full (disconnected while authenticating): method=PLAIN, rip=IP, lip=IP, TLS

In /var/log/secure i can see such messages:

Mar 16 03:17:57 mail auth: pam_succeed_if(dovecot:auth): error retrieving information about user user@domain.tld
Mar 16 03:17:59 mail auth: pam_unix(dovecot:auth): check pass; user unknown

----

Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.

2 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
  • iRedMail Developers
  • Offline
  • Registered: 2009-05-06
  • Posts: 31,091

Re: Errors while retriving mail by pop3

misieq wrote:

Connection queue full

Please increase the number of simultaneous POP3 connections in Dovecot config file (/etc/dovecot/dovecot.conf) in block "service pop3-login {}". For example:

service pop3-login {
   ...
   process_limit = 500
}

Then restart Dovecot service.

Reference: http://wiki2.dovecot.org/Services#imap. … anagesieve