Reasons not to move on-premises mailboxes to Exchange Online


Greg Taylor (EXCHANGE) and I are going to debate the Top Reasons why people don't move on-premises mailboxes to Office 365 at the Ignite event in September. I've listed the reasons I've heard for mailboxes remaining on Exchange on-premises servers. Perhaps you know more... Help us have a great debate by adding your reason at

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Thanks for this information, regards.