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o365 backup after changing smtp and UPN

  • 21 March 2023
  • 5 replies
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Userlevel 2
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Hello Commvault community!

We are planning to change primary smtp address and UPN of our o365 users.
So, Im try to find if will be any conflict in backups, discovery or licensing after these changes.

For example:
- Email   nikos@microsoft.gr   change  to   nikos@microsoft.com
- UPN   nikos@microsoft.gr  change to  nikos@microsoft.com

Thank you in advance!

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Best answer by Scott Reynolds 23 March 2023, 14:10

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Userlevel 5
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Hello @Nikos.Kyrm 

 

The user association is based on the GUID for the mailbox and not the name/SMTP address.

These can be changed as many times as you like as the GUID will stay the same and should not have any effect on the mailbox being protected. 

 

Kind regards

Albert Williams

Userlevel 2
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Dear @Albert Williams 

Thanks for your reply!

So, the GUID is generated from Commvault side or is based from Microsoft side ?

Userlevel 5
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Hello @Nikos.Kyrm 

 

The GUID is the ID that is assigned and created by Microsoft on the creation of the mailbox. 

 

Kind regards

Albert Williams

Userlevel 2
Badge +12

Hello @Nikos.Kyrm 

 

The GUID is the ID that is assigned and created by Microsoft on the creation of the mailbox. 

 

Kind regards

Albert Williams

@Albert Williams  OK, so I assume this is it from Azure AD, right?
 


This is also for OneDrive users, right?

Backup for OneDrive is based also in Microsoft GUID?

Thanks once again!

Userlevel 6
Badge +14

@Nikos.Kyrm 

Yes that is correct CV is leveraging the objectGUID in AD.

You can see the referenced guid in the cvmailbackup logs with the user smtp.

Also correct onedrive is the same.

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