No-one in their right mind would use a program whose config file is indistinguishable from line noise, so that rules sendmail out.
Personally I'm a huge fan of Exim. I've used it in deployments for very large ISPs, and really it's hard to fault it. It's incredibly stable, copes well under high load and basically does everything you need. The Exim mailing list is always helpful and has active developers regularly contributing, so it's pretty hard to beat in terms of support too.
I always found Postfix unnecessarily complex, with a multitude of different config files and poor documentation compared to Exim. I'm sure you'll find plenty of fans of it on here though, mainly because it's the default in most distros these days.
I'm reading a book on Linux which is very biased to sendmail. In fact they only briefly discuss Postfix and Exim. I've used postfix a little in the past and thought it was ok to use.
I suppose a knowledge of all the above MTA's would be advisable. Just interested to know what people think of each. .
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Jon Rohan
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Sendmail is fine - its rare you have to do much with eth main config file, and keeping the books handy fixes that - it just works, is efficient, and after a while sendmail/procmail/m4 all become 2nd nature
Do you mean you moved to exim from sendmail? I can't see anyone describing the sendmail config as 'more readable' over exim.
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I'm a sendmail fan/user, I find the config fairly easy these days. I tried postfix for a few months on a couple of my MX servers and I didnt see any great reason to stick with it so they're all back to running sendmail now. I also love the amount of milters available for sendmail.
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Debian ships with exim by default, so I use that on some machines, and postfix on others. I find postfix config clearer, but that's down to personal taste, I guess. It is more secure by design though, and as I'm fairly paranoid that suits me just fine.
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