Linked by Alex Chejlyk on Mon 18th Jul 2005 17:09 UTC
Internet & Networking Microsoft dropped support for Exchange 5.5 on December 31st, 2004. Exchange 5.5 users can upgrade to Exchange Server 2003, continue to run 5.5 with all accompanied security risks, or switch over to another mail/groupware system.In this article I propose a fourth option that is really options two (run Exchange) and three (run another mail system) combined.
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RE: VMware
by on Mon 18th Jul 2005 22:59 UTC

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VMware does make a product that meant specifically for this application. ESX server will run on any windows of linux machine and will have virtual machines running on top of it. VMWare Workstation is meant for just that... workstation.

There is also the GSX server which is a specific platform and customized linux kernel to run it. Although if you are getting ESX just to avoid upgrading Exchange 5.5 (and your domain) you may want to rethink it a bit.

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RE[2]: VMware
by on Mon 18th Jul 2005 23:05 in reply to "RE: VMware"
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Regarding ESX: I've run an Exchange 5.5 server under ESX server in production for several years. Similar to the setup above, all mail is proxied by a linux firewall (which also performs virus checking and spam filtering) before reaching the exchange server. This IS a workable solution, even if it isn't optimal.

The real problem for Exchange replacements is authentication: none (as far as I know) integrate seamlessly into an NT domain for user authentication. Many users still on exchange 5.5 have also eschewed AD.

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