What is the most common SMTP server under linux?

and also what is the simplest SMTP server under linux..

i'm just playing around with some security issues

james

There are several SMTP servers; sendmail and procmail are very common, although I use qmail because it's much easier to set up.

Sendmail is popular but ridden with security holes. On my server I use Postfix [www.postfix.org], which I really like It's fairly easy to configure and get up and running. From the Postfix home page:

"What is Postfix? It is Wietse Venema's mailer that started life as an alternative to the widely-used Sendmail program.

Postfix attempts to be fast, easy to administer, and secure, while at the same time being sendmail compatible enough to not upset existing users. Thus, the outside has a sendmail-ish flavor, but the inside is completely different."

Joe