I need to use my business domain email

Mehmet Yesil 0 Reputation points
2026-06-21T21:15:24.38+00:00

Hello , I purchased M365 business basic plan. I want to use email address with my business domain , but application automaticly made an email address as (******@miracrafts.onmicrosoft.com ) , I didn`t understand how this happened but I never want such a stupidly email address.

I must use this email address on my outlook ( ******@miracrafts.ca).

Microsoft 365 and Office | Microsoft 365 Defender | Other | Windows
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  1. Pavle Peković 6,410 Reputation points Volunteer Moderator
    2026-06-21T21:51:01.2133333+00:00

    onmicrosoft.com address is given as a starting point, so you can configure your tenant as you prefer. You need to connect your domain to Microsoft 365 tenant you just created and then to configure primary email address for all users.

    Follow this article on how to add custom domain: https://learn.microsoft.com/en-us/microsoft-365/admin/setup/add-domain?view=o365-worldwide&tabs=domain-connect

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  2. EmilyS_726 24,995 Reputation points Volunteer Moderator
    2026-06-21T21:48:49.2133333+00:00

    You need to add your domain information first. Use this instruction: https://learn.microsoft.com/en-us/microsoft-365/admin/setup/add-domain?view=o365-worldwide&tabs=domain-connect

    Once added, you can go to Admin Center https://admin.microsoft.com > Users > Active users, click on yours, edit your information to add an alias, and in the dropdown, you can select the miracraft.ca domain then. And then make it primary alias.

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