How can I run an ubuntu 12.04 server without a mailserver running on it?
This is for improved security and easy mantenance. I don't need mails processed on the system, I read the log files instead.
Some packages install a mailserver although they can be used without mail. What is an easy way to live with that? I don't want to mess with apt-get or find a solution for every single case.
Could I install a dummy mailserer? Or the most simple mail server package of them all and disable it in the config?
Do the various packages install different mailservers, or do some of them install postfix, others exim4?
What could I do?