My server crashed today, and was offline for about 1 hour when I noticed it...
The Daily Process Log shows the following:
user --- %cpu
mailnull - 958 - /usr/sbin/sendmail -FCronDaemon -i -odi -oem -oi -t
This makes me think that what cause the server crash was sendmail that created a high server load...
I dont have any website on my server that sends a lot of emails, so I dont know what caused this. Do you have any idea?
And, how can I disable sendmail?
Will I stop receiving emails from my server if I stop it?