Remove AD domain address for Exchange users

FXE 501 Reputation points
2022-02-02T06:44:08.877+00:00

Hi all,

We have an AD 2019 with Exchange 2019 CU11.
All of our users have a legacy email address formatted as sAMAccountName@keyman .local which is not their default SMTP address of course.

I guess this email address is not related with UPN (which is same formatted) and I want to be sure I can remove email address policy related to this legacy format without impact.

Thank you.
Have a good day.

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
5,822 questions
Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,335 questions
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  1. Aaron Xue-MSFT 2,581 Reputation points Microsoft Vendor
    2022-02-02T08:05:04.93+00:00

    Hi @FXE ,

    You could create a new email address policy to instead of the old one.

    Need to create an accept domain Before you create the new email address policy

    Follow below steps.

    1.Go to mailflow- Accept domain.
    2.Create a new accept domain.
    170493-7.png

    3.Click email address policies.
    4.Click "+" to create the email address policy.
    170377-10.png
    5..Select the accepted domain you just created.
    170468-8.png

    5.Apply it for email address
    170494-9.png

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    1 person found this answer helpful.
  2. Aaron Xue-MSFT 2,581 Reputation points Microsoft Vendor
    2022-02-09T05:38:29.843+00:00

    Hi @FXE ,

    Glad to hear that your issue has been solved and thanks for your sharing. :)

    According to the latest policy, sorry for that you could not mark your answer as the best answer.
    https://learn.microsoft.com/en-us/answers/support/accepted-answers
    172462-14.png
    I will convert you answer as a comment and you could mark this current reply as the answer.

    This will make answer searching in the forum easier and be beneficial to other community members as well.

    Thanks for your understanding.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.