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Hey there,
We have a very strange problem with an on premise AD Domain Controller with AD Connect installed for sync to Azure/365.
Some users appear in 365/Exchange Online as CHECK@mathieu.company .onmicrosoft.com. If i take a look in the on premise Attribute editor of the user the proxyaddresses is set to SMTP:username@mathieu.company .onmicrosoft.com.
Even after i changed that and do a sync, the user is still called CHECK@mathieu.company .onmicrosoft.com and not the proxyaddress that i configured.
Is there anthing i am doing wrong?
The UPN value is used for that, not the PrimarySMTPAddress. If the UPN is empty, then the samAccountName attribute is used, along with the default tenant.onmicrosoft.com domain.
@JustinVers-2058
I just wanted to check in and see if you required additional assistance or if you were able to resolve this issue?
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