On a cPanel dedicated server, exim was unable to deliver emails and all the emails were stuck in mail queue. Here what we found in the exim_mainlog
2009-03-22 03:46:04 H=localhost (Server-IP) [127.0.0.1] Warning:
Sender rate 0.0 / 1h
2009-03-22 03:46:04 1LlJJk-0003cX-HY <= test@somedomain.com H=localhost (Server-IP) [127.0.0.1] P=esmtpa A=fixed_login:test@somedomain.com S=798 id=1853.17.23.12.34.1237711564.squirrel@Server-IP
2009-03-22 03:46:07 1LlJJk-0003cX-HY alt3.gmail-smtp-in.l.google.com [209.85.218.31] Connection refused
2009-03-22 03:46:10 1LlJJk-0003cX-HY alt4.gmail-smtp-in.l.google.com [209.85.221.10] Connection refused
2009-03-22 03:46:10 1LlJJk-0003cX-HY == ourtestmail@gmail.com R=lookuphost T=remote_smtp defer (111): Connection refusedWhile troubleshooting the issue, we found the following:
root@server [~]# iptables -nL Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- 0.0.0.0/0 127.0.0.1 tcp dpt:25 REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:25 reject-with icmp-port-unreachable
You have to remove this two iptables rules.
root@server [~]# iptables -D OUTPUT 2 root@server [~]# iptables -D OUTPUT 1
You then have to save iptables and restart.
root@server [~]# /etc/init.d/iptables save root@server [~]# /etc/init.d/iptables restart
Now, check your mails and you will see all the mails getting delivered.
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Hello Team,
I have the same issue: CPanel EXIM error – remote_smtp defer (111): Connection refused
And your howto works fine for me for a view days. But the issue comes again and again.
Is there a solution that works for more then a view days?
Comment by David — May 21, 2010 @ 4:03 am
This error doesn’t repeat for us. We will have to check your server in this case. You can contact us from our contact form page.
Thanks!
Comment by admin — July 23, 2010 @ 7:37 pm