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How to change SMTP server IP (Exim IP) on WHM server

1) Login to WHM

Click Exim Configuration Editor

Check the box next to:
“Send outgoing mail from the ip that matches the domain name in /etc/mailips (*: IP can be added to the file to change the main outgoing interface)”

Save Changes

Then edit the file /etc/mailips

from shell and add:

*: #ReplacewithnewIP#

service exim restart

2) Login to Shell

Access the Exim configuration file:
nano /etc/exim.conf

Locate remote_smtp

The default setup will look like:

driver = smtp
interface = ${if exists {/etc/mailips}{${lookup{$sender_address_domain}lsearch{/etc/mailips}{$value}{}}}{}}
helo_data = ${if exists {/etc/mailhelo}{${lookup{$sender_address_domain}lsearch{/etc/mailhelo}{$value}{$primary_hostname}}}{$primary_ho stname}}

Change to:

driver = smtp
interface = # Change to your server IP address.

Save changes and exit.

Restart Exim

If there is an exim update when you upgrade your cPanel server you will need to re-enter the interface again.

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