Incorrect Microsoft Teams Email Address in Microsoft 365
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Incorrect Chat / Microsoft Teams Email Address in Microsoft 365 Contact Profile


Have you experienced an incorrect email address being assigned to your Microsoft 365 profile? One of our Southampton IT support clients contacted us recently with this exact query.

When you searched for the contact in Outlook Web Access (https://outlook.office.com), in the People view, the contact in question had an incorrect “Chat” name showing in their contact card. Their primary email address was correct, but the Chat address was wrong.

It would appear that the Chat field for a Microsoft 365 contact affects how they appear in Microsoft Teams.

In this case we had (as an example) john.smith@… whereas the person’s real name was john.small@…

Clearly this must have been a clerical error. We suspect the user was mistakenly added to Microsoft 365, when they were a new employee, using the wrong surname. It was subsequently fixed very quickly. But not before the 365 platform had registered the incorrect name against the “Chat” address of their contact card.

You may notice, if you have the same issue, that the Chat field is not editable anywhere obvious within the main Microsoft 365 Admin portal, nor the People section of Outlook. You can’t edit it in Azure Active Directory, either. Nor can you edit from the Microsoft Teams admin portal. So how do you change the Microsoft 365 user’s Chat address?

How to fix your Microsoft Teams email address

The option to change your Microsoft Teams email address is in fact buried deep within the Exchange Admin Console.

  1. You need to open the Exchange Admin Console from the Microsoft Admin portal (https://admin.microsoft.com). Microsoft 365 admin center. User management.
  2. Then navigate to Recipients > Mailboxes. Microsoft 365 admin center. Recipients.
  3. Double click the affected user.
  4. Click the Email Addresses tab in the pop-up settings window for that user’s mailbox. Microsoft 365 admin center. Email address.

You will note the incorrect address is registered as a SIP address for that user. SIP is a protocol related to all things VOIP / internet calling / video conferencing. The SMTP (email) address may well be correct. However you will need to remove and re-add (or edit) the SIP address to match exactly the user’s primary email address. Then allow 24-48 hours for the change to be reflected throughout the 365 platform.

Problem solved!

Real-Time Feedback

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Date Name Comments
Jun 18th Val W brilliant thank you
Jun 15th Caroline W Speedy, thank you
Jun 14th Lynn H Dean worked really hard on this one. Very taxing. Really appreciate the time spent to get us up and running. Many thanks.
Jun 14th Lynn H Dean worked really hard today but we have a successful result. Many thanks
Jun 11th Karen W Thank you so much Michael Have a great weekend Kind regards Karen
Jun 10th Sally & Thanks again!!
Jun 10th Amanda H Very pleased with your sorting out a difficult problem. I'd love to know how it happened - and still suspect malware. Thanks very much -- and Purple for being there. Amanda
Jun 10th Frances J As usual, quick to respond to my request and sorted it within minutes! Cheers Lochie!
Jun 9th Sally & Thank you - quick as ever
May 28th Lynn H Really great professional service . Updates seem to have run very smoothly. Thank you