Share via

Issue with AD Connect (user called ******@company.onmicrosoft.com)

Justin Verstijnen 211 Reputation points
2020-08-20T09:26:50.01+00:00

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?

Windows for business | Windows Client for IT Pros | Directory services | Active Directory
Microsoft Security | Microsoft Entra | Other
0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Vasil Michev 127K Reputation points MVP Volunteer Moderator
    2020-08-20T09:44:02.153+00:00

    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.

    Was this answer helpful?

    2 people found this answer helpful.

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.