Dodgy mailnull?

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Posted by kshazad86, 04-05-2012, 06:52 AM
I'm constantly receiving emails from CSF on my cPanel server of the following mailnull process: Can anyone let me know what is the purpose of this mailnull process and how to investigate this further?
Posted by Patrick, 04-05-2012, 09:11 AM
The mailnull process is Exim, also known as your mail (SMTP) server. Nothing to worry about.
Posted by kshazad86, 04-05-2012, 09:14 AM
Yes, but if it is running for a long period of time, does this mean it is sending a lot of mail? If so, how can I find the user causing the havoc?
Posted by Patrick, 04-05-2012, 09:24 AM
It should be running 24/7 otherwise you won't be able to receive email. Are you having a problem with someone sending large volumes of mail or spam from your server?
Posted by kshazad86, 04-05-2012, 09:27 AM
I'm having spam issues, the server always seem to have spamd running for long periods of time:
Posted by Patrick, 04-05-2012, 09:49 AM
The spamd process is SpamAssassin. It's used to filter incoming spam for your users and it should also be running 24/7 - if you don't want the mail to be filtered for spam you can disable it from within WHM. If you're having spam problems, check the mail log /var/log/exim_mainlog to see where it's originating from. It's kind of a tedious task though to track down spam.. :/