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O365: The target mailbox doesn’t have an SMTP proxy matching

Hello All,

I am still working with some Office 365 issues. This one involves me off-boarding a previously migrated account back to my on-premise Exchange Server.

 

 

I had entered the wrong domain for “Target Deliver Domain” which caused the migration to fail with the following error:

The target  mailbox doesn’t have an SMTP proxy matching…

To resolve this issue

  • Open Exchange Admin Center on-premises Exchange server.
  • Click Mail flow, and then click Email address policies.
  • Select the email address policy, and then click Edit
  • Locate the domain (<domain>.mail.onmicrosoft.com).
  • Use this for Target Delivery Domain and attempt to migrate again.

Ref:  http://support.microsoft.com/kb/2939340

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