How to reinstall exim or cpanel-exim to restore exim service?

Jaime Soto

• June 26, 2024 19:20
• Edited

Hello.... something happened with e-mail sending that stopped working. i have uninstalled postfix because it was providing the SMTP server. My idea is to use Exim, however, when I try to install it, I got the following error:

root@zeus:~# sudo apt install exim4
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package exim4 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  cpanel-exim

E: Package 'exim4' has no installation candidate

 

It seems cpanel-exim is installed that replaces exim4 but exim service is not running. How can I fix it?

Thanks

• 

  cPRex Jurassic Moderator

  • June 27, 2024 05:35

  Hey there!  By default, cPanel doesn't install or use postfix and it's not a tool that we have ever supported, so you'll likely need to work with a system administrator to see what custom configurations were setup on that machine.  It's odd to me that it was present and you had to remove it.

  Normally, Exim is configured by default on the machine as part of the initial installation, but if your server had cPanel and Postfix working at the same time there were likely many other customizations performed on the machine.  I wouldn't be able to tell you with any certainty how you could get Exim working and stable on that system, unfortunately.

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• 

  Jaime Soto

  • June 27, 2024 12:15

  Hello.... I manage that machine. What I wonder, is why I cannot install Exim because it is already a component called cpanel-exim. So, the questions could be, what is cpanel-exim? how can I reinstall it? or, how can I remove it? is it critical for cPanel operation regarding e-mail?

  I have already removed Postfix, so no other web server is active in the system.

  I have paid to have cPanel in my server, so, where can I get support so that someone can help me to solve this?

  Thanks

  Jaime

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  cPanelPeter cPanel Staff

  • June 27, 2024 16:38

  Hello Jaime,

  cpanel-exim is Exim. It's repackaged because. we made some significant changes to work with the cPanel UI system. You sould not install Exim via apt install as that will definitely break many things.

  If cpanel-exim isn't working properly, you can try this:  

  /usr/local/cpanel/scripts/check_cpanel_pkgs

   

  If that detects anything wrong with the cpanel-exim package (or any cPanel provided package) you will be given the option to fix it.  

   

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