It's getting to be time to setup a mail gateway at the edge of my network to sanitize stuff before it hits the company Exchange box. Originally I had planned on setting it up using Sendmail, but I have had some recent exposure to both Postfix and Exim, and they seem to be nice pieces of software and are generally well respected online. The most attractive thing about them is that they seem to "do the right thing" for the most, but maintain a fairly good level of flexibility, without the configuration voodoo required by Sendmail. As much as I like Sendmail's power, escaping from those arcane texts is appealing. I did some looking about for comparisons among Sendmail, Postfix, and Exim and the newest one I came upon was from 2003. I doubt very much that conversation reflects the world as it is now. For any of you who have used Postfix or Exim (or ideally both of those and Sendmail) in a production or production-like environment I ask:
-How well do they do spam filtering in practice? I assume they operate in a fashion similar to Sendmail milters. Does the quality of the available filtering mechanisms compare to that of Sendmails? -How "heavy" are they? Sendmail can process huge volumes of mail on surprisingly low-powered hardware, even while doing a fair amount of mail-munging. -What's the maintenance experience like, say 6 months or a year after installation? I don't want something I have to constantly poke. I already have an Exchange box for that.... I'm also open to other suggestions, except Qmail. That looks more complex than Sendmail, and I'm already familiar with Sendmail's weirdness. I know that asking admins about MTAs is like asking coders about languages or editors, so please keep the flaming to a minimum... :D -- -Regards- -Quentin Hartman-
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