Unable to receive mail after sync AD user to Azure

Occasional Visitor

Hi,

 

I've configure Azure Ad connect to synchronyze my user account to my O365 tenant to use TEAMS only

All it's OK but after user migration I no longer receive emails, but you still can send them

 

When they send me a mail, I see it in log that Exchange 2013 route mail to our anti-spam server (use for external mail) then anti-spam route mail to exchange server which re route to anti-spam...

 

Why mail send by internal user who have synchronised are consider as external mail ?

 

Thansks

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