SMTP address can be set different from UPN to any registered DNS tenant domain.

UPN (User principal name/ login name) = SIP URI.

If you like creating a new user with different UPN/ default domain, change it during the creation task at the top of the create new user wizard (or if via PowerShell, define the DNSdomain there) This default domain is automatically suggested once you create an Office 365 user account. If you define multiple DNS domains, you only one default domain. where the UPN of user will be automatically : you add the original domain into the tenant and make it the default domain the user UPN (only those with will be automatically changed too the new default domain with an automated Office 365 internal batch run.

This will allow you to change whatever email is set as the primary email and also enter a secondary one if. Click the ‘Add email address’ option under the ‘Email address’ section. If for some reason the email link doesnt work, copy the recovery code listed in the email text, click the Enter code button on the Email sent screen, paste the code from the email, and click the Submit button. In the column on the left, click the ‘Edit Profile’ option. Click the link inside the email to display a list of Skype accounts associated with that email address. What is important in Office 365 AZURE AD? First activation of the tenant defines the default domain as xx. Visit this link in your browser, and sign in to your Skype account.

This parameter is restricted within Remote Tenant PowerShell.

Change email on skype