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Look for a good email server for windows other than exchange server

do you guys have any recommendations?

only need IMAP/POP3/SMTP and SSL support

for small biz use, no more than 100 users 20 domains

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How many users / what kind of load? Any groupware needs? Active Directory integration? Giving us more details could prove beneficial to your quest. –  Wesley Oct 29 '09 at 21:46
    
A explanation as to why you don't want to use exchange would be handy. –  p858snake Oct 30 '09 at 0:15
    
Exchange is sometimes a bit "heavy" on both the hardware and the wallet. But still, why not Exchange? Price? Hardware not beefy enough to handle it? License issues? –  Avery Payne Oct 30 '09 at 1:27
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6 Answers 6

I've tinkered with hMailServer.

http://www.hmailserver.com/

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+1 for hMailserver. I used it for my personal domains with no issues. It can connect to SQL Server, which opens up a whole host of options. –  Lazlow Nov 3 '09 at 20:58
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Here's another vote for hMailserver. I've been using it for about 9 months for those domains we don't want to include on our Exchange server (don't ask, that's just the way it is). I also use it for my personal domain and my family can access their email from anywhere via the webmail interface provided by the Squirrelmail. That's real handy when you're travelling.

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I saw a alt-n MDaemon installation with around 200 users a few years ago, and that company was happy with it. It is a product that has been around for years now.

For the small-biz space I'm quite happy with Kerio -- but I have never worked professionally with their Kerio Mailserver product, so I have no direct experience with it. It gets very good reviews from time to time...

My solution of late has been Google Apps. I'm super-happy with it:

  • Uptime is as good as any self-hosted solution in the smallbiz space will see
  • The feature set works O.K. for smaller companies
  • Having one system less to administer and maintain is a real relief.

Perhaps not ideal for your 20 domains requirement though -- you can add domain aliases to a Google Apps account, but I don't know how many it will take, and usernames will be shared across domains. One potential workaround is to make multiple accounts of course..

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Upvoted for the Google Apps part. Can't speak to the other options. –  AnonJr Oct 30 '09 at 0:40
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I have a friend who swears by IceWarp.

No discussion of Exchange alternatives is complete without mentioning Kerio!

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Argosoft Mail Server

I've been using the Argosoft mail server for years and its proven to work quite well. It also has a very nice amount of spam filtering based on DNSBL, and Geo IP.

http://www.argosoft.com/rootpages/MailServerNET/Default.aspx

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Many use iMail (from IPSwitch), and claim great success. Never used it though, but probably something worth checking out.

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