Microsoft have a roadmap to migrate your system to Exchange Online (Office 365)
Issues you are likely to encounter
Organisation limit is 50Gb for all email including shared Inboxes.
Failed migration of mailboxes
Very slow during migration
Systems for Business
Microsoft have a roadmap to migrate your system to Exchange Online (Office 365)
Issues you are likely to encounter
Organisation limit is 50Gb for all email including shared Inboxes.
Failed migration of mailboxes
Very slow during migration