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We are moving from an externally &nbsp;hosted POP server to an in house exchange 2010 server.I am using a tool to pop the users mail from the hosted site to keep mail up to date. The issue I have is when a user migrated &nbsp;to exchange sends an e-mail to a user in our mail domain &nbsp;the exchange server the user obviously is not found. <br />
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Is there a way &nbsp;to have mail for users not yet migrated relayed to the hosted mail &nbsp;server?<br />
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We are moving from an externally  hosted POP server to an in house exchange 2010 server.I am using a tool to pop the users mail from the hosted site to keep mail up to date. The issue I have is when a user migrated  to exchange sends an e-mail to a user in our mail domain  the exchange server the user obviously is not found. 

Is there a way  to have mail for users not yet migrated relayed to the hosted mail  server?



Exchange 2010 Migration from Hosted POP

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.

Microsoft Server OS

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.