I was facing some problems with my exim mail server after cpanel migration. I weren’t able to send and receive emails from all emails accounts under any domains on that migrated VPS.
How to check?
Create a test email account under a domain on that VPS.
Login to cPanel >> Mail accounts >> Create new >> [email protected]
Then try to send emails from that test account you have created and watch the exim log file via command line
[root@EcLinux]# tailf /var/log/exim_mainlog | grep [email protected] 2013-09-21 06:34:28 1VND1f-0006gu-J1 <= [email protected] H=(22.214.171.124) [127.0.0.1]:43456 P=esmtpa A=dovecot_login:[email protected] S=601 id=86ca9dc7a0c94ca7492e03[email protected] T="Test mail" for [email protected]
Using Message ID from the above output check the mail queue log(exim -Mvl Message ID)
[root@EcLinux]# exim -Mvl 1VND1f-0006gu-J1 2013-09-21 06:55:32 Received from [email protected] H=(126.96.36.199) [127.0.0.1]:44445 P=esmtpa A=dovecot_login:[email protected] S=602 [email protected] T="Test mail" 2013-09-21 06:55:33 [email protected] R=dkim_lookuphost defer (-1): host lookup did not complete
Got the error “R=dkim_lookuphost defer (-1): host lookup did not complete”
Add these nameservers 188.8.131.52, 184.108.40.206 IP to the resolv.conf file will solve the issue.
[root@EcLinux]# vim /etc/resolv.conf --------- nameserver 220.127.116.11 nameserver 18.104.22.168 ~ ~ ~ :wq ---------
Thats it, I hope this solution will solve your issue. 🙂