This article explains how the mail
, mailnickname
, primarySMTPaddress
and UserPrincipalName
values are calculated when syncing from on-premises AD: https://learn.microsoft.com/en-US/troubleshoot/azure/active-directory/proxyaddresses-attribute-populate
Azure ad user email nickname

What populates the email nickname for a user in Azure AD. The user is synced via Azure Active Directory. We do not use exchange and have never utilized it. I can not see that attribute in AD. I want correct the spelling of the nickname but was curious where it gets populated in the first place.
-
Vasil Michev 113.3K Reputation points MVP
2023-04-08T07:44:06.68+00:00
1 additional answer
Sort by: Most helpful
-
Michael Calero 80 Reputation points
2024-01-09T05:14:20.2333333+00:00 Not sure if you still need help with this. But, you wouldn't see MailNickname in Active Directory. From my understanding, its only for Azure Entra (Formerly Azure AD) ID's. You can look at it as Microsoft Entra's (Azure AD) version of your on prem Active Directory ProxyAddresses. While they both are used as email identifiers, since you're synchronizing users from your Active Directory environment, you wouldn't have to worry about the mail nickname. Unless you're creating the user in PowerShell with the New-AzUser cmdlet. Then you would need to use it.