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There are a lot of mail servers out there. Microsoft Exchange has been the dominant corporate mail server in the enterprise on Windows, but I've been using Kerio Mailserver for a long time now and am still wondering if there aren't any better solutions.

Which mail-server do you use, and why?
What feature make a specific mail-server 'stand out'?

_Both NIX and Windows applications are welcome.

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36 Answers 36

Postfix+postfixadmin+dovecot and rouncube webmail (w/postfixadmin plugin), all using a MySQL backend.

Simply because it's free and rock stable.

Probably going to move to Exchange when I have the budget for it. I want to synchronize my calendar from my smartphone (our sales team -really- wants it).

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I like Unison as it integrates all my communications tools in one application-very simple as you access email/im and telephone rules from one simple interface... It manager doesn't have anymore multitude of servers to manage as well telephony becomes integrated with the rest of tech tools

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if you read about sendmail at all you quickly discover its history of "bug of the week". Other solutions have come out since then, in fact a lot.

Postfix makes a good drop in replacment.

Qmail touts its correctness and security.

I know more about SELinux than qmail so I take my chances with having the correct SELinux policy (ie custom SELinux policy, though the default should be fine, properly configured of course) with a drop in sendmail replacement.

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For a Windows shop, Ipswitch's IMail packs quite a punch for the money.

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I used Qmail for years - mostly because I spent a lot of time maintaining a medium-sized Qmail installation for one of my employers a few years ago.

I recently moved all my email from Qmail to Exim, and managed to (mostly) script the migration of all the virtual domains. I also moved from using Courier to Dovecot for IMAP and POP3.

http://struction.de/projects/HOWTO_VirtualMail_Exim-MySQL-Spamassassin-ClamAV-Dovecot/index?set_style=clean is a good guide on combining Exim with ClamAV, Spamassassin, Dovecot with a MySQL backend.

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Groupwise. Because it gives users something to complain about. That's the only reason I can think of for using it.

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