550 no mailbox by that name is currently available

Ronald Matias 0 Reputation points
2023-06-08T12:52:55.0366667+00:00

I noticed that after setting up the hybrid exchange configuration, new mailboxes that are created on-prem are not receiving emails from external senders. All other old mailboxes on prem are getting emails just fine.

Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
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