I currently have SBS 2003 using Exchange SP2.
I have 13 client PC's that have Office 2003 (1 has Office 2010).
I am in the process of upgrading all the PC's to Win 7 in preparation for moving to Essentials 2012 (5 more to go).
I need to get all the clients on Exchange online before I can upgrade the server to Essentials 2012 which has no Exchange.
However, based on my research Exchange online (BPOS) is the only thing that supports Outlook 2003.
It sounds as though BPOS does not support some Outlook features.
What would be the best solution to this migration issue with Outlook?