Hi,Is there anyway to connect 2 Exchange Servers 2003 & 2007 from 2 different standalone Domain & location just for Calendar sharing?E.g. adam@ab.com able to view & shared calendar with tony@bc.com . Both clients use Outlook/OWA & Mobile Push-mail.Or any 3rd party Software can help me on this?Thanks

Have a look at my post on http://social.technet.microsoft.com/Forums/en/exchangesvrdeploy/thread/d7203f3e-5c53-4510-9dde-0ca2aa2ef499This might be a good soultion http://office.microsoft.com/en-us/outlook/HA100398301033.aspxRaj

Thanks Raj, This helps.