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I am currently migrating an Exchange 2007 environment with about 50 mailboxes to Office 365 Premium (with online Exchange).

Although setting up a staged migration is pretty straightforward, what do I need to arrange to enable my local server as a migration endpoint?

Jorrit Reedijk
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1 Answers1

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  • Add the option "RPC-over-HTTP" via the Windows Features in Add/Remove Programs
  • Enable Outlook Anywhere (that is not the same as just having OWA available)
  • Make sure you import a SSL certificate in the IIS website from a trusted authority, so NOT a self-signed one. The FQDN in the certificate should be that of your public FQDN (not that of the local mailserver)
  • Only port 443 with TCP has to be routed via NAT to your local mailserver

A bit of detail can also be found on the MS Technet website here: https://technet.microsoft.com/library/bb123889%28EXCHG.80%29.aspx

Jorrit Reedijk
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  • 2
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