Lightweight Mail Server

[cdcarter]

Hi, is there an really lightweight mail server that I can easily setup (I am not afraid of ./configure, but I prefer the comfy home of debians apt-get). Right now I run a postfix instance plus authd and a hell of other stuff so I can forward some accounts to my gmail, yet not leave my mailserver open for abuse. I want the ability to forward mail from multiple domains, and to make it so you can't send email remoteley from the machine. Is this feasable? It needs to have a low RAM footprint

[tetech]

Hi, is there an really lightweight mail server that I can easily setup (I am not afraid of ./configure, but I prefer the comfy home of debians apt-get). Right now I run a postfix instance plus authd and a hell of other stuff so I can forward some accounts to my gmail, yet not leave my mailserver open for abuse. I want the ability to forward mail from multiple domains, and to make it so you can't send email remoteley from the machine. Is this feasable? It needs to have a low RAM footprint

Why do you need "a hell of other stuff" beyond postfix?

That aside, the four best known MTAs are sendmail, postfix, exim, qmail. See a comparison here: http://shearer.org/MTA_Comparison

I won't touch qmail. Exim you can config out a lot of stuff at compile time and make it pretty small. Sendmail is also pretty small. Postfix is bigger but from what I know does put a bound on its memory usage whereas sendmail you can only control the number of processes it forks.

But having made these general comments, I'll add that I'm not an MTA expert.

BTW, there's not much difference between "forward mail from multiple domains" and "send email remotely". All the incoming connections are on port 25, it's just what is classified as an allowed relay and what is prohibited, and this should be configurable on any MTA.