Post server + spam filter on Windows Server 2008 x64

Question

Mail server

Advise the mail server and the spam filter working with it for Windows Server 2008 x64. Or share your experience of setting up mail on WinServer.

At the moment I use hMailServer + SpamAssassin (sawin32), it looks like a crutch. sawin32 does not see local.cf settings for some reason (in particular, the most important required_score parameter), only works with POP3, and is generally outdated. But I want spam to be in the user's Spam folder, for which, as far as I understand, a spam filter with IMAP support is needed.

Answer 1

exchange is like the first dose which is free :) especially in the question of spam filters
look aside
merak mail server
kerio mail server
CommuniGate Pro
the choice of product also strongly depends on the needs, how many clients/domains/volumes etc.

Answer 2

zimbra