Is there any open source Exchange server that is work fine like Microsoft Exchange for Linux or Windows?
7 Answers
Zimbra is an open source alternative to Microsoft Exchange. It uses a number of open source products, namely Postfix, Tomcat and OpenLdap. It can interact with Active Directory and other directory structures. It also offers a pretty extensive AJAX enabled web interface.
It offers most of the features offered by Exchange:
- Contacts
- Shared Calendaring
- VOIP integration
- Mobile access with activesync push sync and Blackberry Enterprise Server connector
- MAPI, IMAP, POP, iCal iSync Access
- Extensive web interface
It offers both an open source and commercial version, and is now owned by Yahoo.
Ahh...the white whale of open source, the Exchange killer. There's no shortage of competitors:
- SoGO
- Open-XChange
- Zimbra
- Citadel
- Bongo
- Horde
- Meldware
- OpenChange
- Scalix
- eGroupWare
- phpGroupWare
And, for those that aren't necessarily looking for free (in either sense), but just don't like Microsoft or Exchange:
- Gordano
- PostPath (once Cisco decides what to do with it)
- Lotus Domino/Notes
- Google Apps
- Kerio KMS
- GroupWise
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PostPath is (as far as I know) the closest you'll get to a "drop-in" replacement for Exchange; but it sounds like Cisco has spirited it away to the dungeons beneath their offices. Scalix is based on HP OpenMail (en.wikipedia.org/wiki/HP_OpenMail). May 14, 2009 at 22:34
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Heck, GroupWise even has BlackBerry support. Though you'll need a Windows server to run the BES.– sysadmin1138 ♦Jun 8, 2009 at 16:48
There is an Exchange-like open source project called Open-Xchange.
It is a messaging and collaboration platform combining common free software packages, open standards and web services. Open-Xchange Server is available as proprietary software and as a community supported open-source software (GPL 2) package.
We evaluated http://www.kerio.com/ when we moved away from Exchange 5.5, and it seemed quite polished.
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+1 for Kerio. We use it with Entourage client or Mail.app on our macs, and even have over-the-air email/cal/address push to our Nokia and iPhone mobiles. Works great, and integrates with our OpenDirectory for users, groups, and authentication.– lukecycaJul 7, 2009 at 23:12
It is not open source, but the community edition of Scalix is free-as-in-beer. Never used it myself but I've heard really good things about it.
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According to this, most of it is: scalix.com/community/opensource May 6, 2009 at 13:25
I've not tried it personally but take a look at http://www.zimbra.com/
It's dual licensed but the opensource one might give you everything you need.