Les Mikesell wrote:
Susan Day wrote:
Hi; I don't want sendmail. What's a good secure email server that I can yum? I really only need smtp right now, but who knows what the future will bring?
Postfix is probably a reasonable choice, but I'm curious as to how you reached the decision that you don't want to use the standard, mostly-preconfigured tool without already knowing anything about the other choices. Sendmail may have a long history of exploits back in the day with it was monolithic and ran as root, but now it is probably the most carefully audited piece of code shipped in the distribution. The milter interface developed for sendmail (and now also implemented in postfix) lets you add functionality that wasn't designed in, so it is hard to imagine a mail job or environment that either couldn't handle.
I don't see sendmailX on Centos at the moment...do you? It is therefore still monolithic as far as Centos is concerned.
postfix comes with mysql/postgresql support and with connection pooling at that and which can be used directly in a lot of built-in features of postfix. Unless the supporting stuff in the milters are as efficient as what you can get in postfix, sendmail + milters might be hard pressed to handle some environments that postfix can.