I'm performing an On premise Exchange 2016 CU3 migration to Office 365. (I've not done this before). This is a test domain, it will never be used in production, this is just an exercise so I can run though the process, before I have to do it live.
- Azure AD connect has been installed (and has Synced).
- Domain has been setup (and verified) in O365 Admin.
- Hybrid Wizard has been run through, and completed successfully.
- No users have yet been migrated into O365.
After all the DNS changes and new MX records etc, I decided to check mallow before proceeding. (remember all mailboxes are on-premise).
There is no mail flow, outbound mail leaves the queue from Exchange 2016
Inbound mail does not arrive.
Exchange Connectivity Analyser tells me inbound mail is fine, but it isn't?
I cant find one DECENT article, on Microsoft or anywhere else, that walks you though an Exchange on-prem to Office 365 Hybrid Migration!
What am I missing/What have I done wrong?