Am migrating users from Domain A to Domain B.
Primary domain has distribution groups having “Only senders inside my organization”
We can’t expose the distribution groups as some mailboxes are migrated across forest.
Create a receive Connector to allow emails to be authenticated for distribution groups.
Note: Appropriate mail contact/mail user should be available.
Add the IP to be allowed.
Open the properties of the connector –
Make sure Externally Secured is checked
Satheshwaran Manoharan - Microsoft MVP - Award-winning Technology Leader with a wealth of experience running large teams and diversified industry exposure in cloud computing. From shipping lines to rolling stocks.In-depth expertise in driving cloud adoption strategies and modernizing systems to cloud native. Specialized in Microsoft Cloud, DevOps, and Microsoft 365 Stack and conducted numerous successful projects worldwide. Also, Acting as a Technical Advisor for various start-ups.
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