Change mail sending IP - Linux

Sometimes mail server IP gets blacklisted in the RBL's which causes inconvenience to send / receive emails. To overcome the problem, the mail server IP can be changed so that mails will worked fine.

To change mail server IP:

1) Login to WHM and got to WHM >> Main >> Service Configuration >> Exim Configuration Editor >> Domains and IPs , enable option "Send outgoing mail from the ip that matches the domain name in /etc/mailips"

2) Login in the server as a root user using shell and open file /etc/mailips for editing

which will display something like this

    *: 111.111.111.111

Replace 111.111.111.111 with the new mail server IP and save the file.

NB. Add the line if it doesn't exist

3) Restart exim service

    # /etc/init.d/exim restart