Exchange Online Hybrid with Centralized Mail Transport

Copper Contributor

When exchange online mailboxes set OOO in both inside and outside organization fields, onprem/internal users are getting the "Outside my organization" OOO.

 

Same for onprem/internal users who set OOO, the exchange online mailbox is receiving the "outside my organization" OOO.

 

When I set AllowedOOFType to InternalLegacy using set-remotedomain, onprem/internal users are getting the "Inside my organization" OOO but external recipients are also getting the same thing - the inside my organization OOO text.

 

How do I get this working correctly?

1 Reply
And what is IsInternal set to? Read its' note here, in combination with AllowedOOFType:
https://learn.microsoft.com/en-us/powershell/module/exchange/set-remotedomain?view=exchange-ps