Hello, We are planning to add one more new Exchange server with latest version which is Exchange 2010 We already have Exchange 2003 SP2, i want to know can we directly jump to Exchange 2010 from Exchange 2003 SP2 Also, i want to know there will be any issue with the existing Exchange 2003? What kind of software/additional software will required for deployment of Exchange server 2010 What thing i need to take care before/after deployment of Exchange 2010 Regards, Swapnil Regards, Swapnil Jain

Here are artcile which will help you with your quesries System Requirements http://www.microsoft.com/exchange/en-us/system-requirements.aspx Understanding Upgrade from Exchange 2003 to Exchange 2010 http://technet.microsoft.com/en-us/library/ff805040.aspxJasjit Singh Dhindsa | ITIL v3 | IASA Foundation Certified | MCITP:Exchange 2010 | Exchange 2007 | MCTS:OCS 2007 | Exchange 2010 | Exchange 2007 | MCSA:Messaging | Security | MCSE:Messaging | Security

Thanks Jasjit for your quick reply, I will check and let you know.Regards, Swapnil Jain

There should be no problem, 2010 is designed to coexist with 2003. Here are a few links to help you: Pre-Deployment Analyzer: http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=11636 Deployment Assistant: http://technet.microsoft.com/en-us/exdeploy2010/default.aspx#Home Mailbox Calculator: http://blogs.technet.com/b/exchange/archive/2009/11/09/3408737.aspx Other References: http://howdouc.blogspot.com/p/exchange-references.html Tim Harrington | MVP: Exchange | MCITP: EMA 2007/2010, MCITP: Lync 2010, MCITP: Server 2008, MCTS: OCS | Blog: http://HowDoUC.blogspot.com | Twitter: @twharrington

The only one that could occur is if you're using application based on WebDAV, they needs to be ported to use EWS instead since WebDAV has been removed Check the links that Tim posted, start with them and post back if you have any further questions Jonas Andersson | Microsoft Community Contributor Award 2011 | MCITP: EMA 2007/2010 | Blog: http://www.testlabs.se/blog | Follow me on twitter: jonand82

Other things to think about are your MX records where the entry will be into your Org, i.e will you move over to 2010 and the email being sent out externally, consider moving the routing to the 2010 server (create a send connector) You also want to consider your external namespace if you're using OWA/EAS etc...will have tomove your namespace over too, and think about a co-exitence namespace if you're not doing a 'big bang' migration.Sukh

Thanks everyone for your great help, i am right now going through all above links/things. Looks like i got whatever i want from all above suggestion/tools/links/things, but if i stuck again anywhere i will post my question. Thanks for your greate help. Regards, SwapnilRegards, Swapnil Jain