On Thu, 2007-12-13 at 08:41 +0530, Indunil Jayasooriya wrote: > Hi All, > > I am looking for an open source email client package that is > equivalent to MS OUTLOOK. > > Clients are running Windows XP and Vista and Linux. So the package > should be able to run on both Windows And Linux. > > Mail server is running Ms Exchange. I would use Outlook for the Windows clients if the server is running Exchange. I don't think there is a OSS solution that runs well on all platforms. Evolution may work for your Linux clients, but I don't think it has full outlook capabilities. Personally I prefer imap - imap works well with a lot of mail clients, including thunderbird, which runs on most platforms. But if you are running exchange for some specific features of exchange - your best bet may be Outlook on Windows and Outlook via CrossOver Office on Linux.