Category: WHM panel

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

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

Login to Shell

  • Access the Exim configuration file:

nano /etc/exim.conf

  • Locate remote_smtp
  • The default setup will look like:

remote_smtp:
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:

remote_smtp:
driver = smtp
interface = 12.14.12.14 # 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.