We are going to implement exchange server in our network. At present using outlook 2007 to access pop mail. Some clients got PST files more than 2gb. some reachin till 6 GB. When it's moved to exchange , will PST files have to be spilt up , will exchange 2007 supports multiple PST files for a single user account.. Thanks in advance

Well, if you have Outlook 2007 then make sure that you have installed Febuary 2009 cumulative updates for better performance with large PST file and higher number of items in a folder so you don't require to split PST. Comparation on with and without Feb. 2009 cumulative updates: How to troubleshoot performance issues in Outlook 2007 http://support.microsoft.com/kb/940226 Download: Outlook 2007 improvements in the February 2009 cumulative update http://support.microsoft.com/kb/968009/ Additionally you can attach multiple PSTs with an Exchange Mailbox configured in outlook. Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

Thanks!!!