How to set up your own custom domain in your Microsoft 365 tenancy:
The first step is to sign in to your Microsoft 365 admin center. You can do this by going to the Microsoft 365 sign-in page and entering your admin credentials.
Once you're signed in to your admin centre, in the left-hand navigation pane, click on "Settings" and then select "Domains". This is where you can manage the domains associated with your Microsoft 365 tenancy.
To add a new domain, click on the "Add domain" button to start the wizard. This will bring up a form where you can enter the details of your new domain, such as "yourdomain.com", and click "Next".
On the next page, you will be asked to verify that you own the domain. Select the verification method that suits you best: "TXT record", "MX record", or "CNAME record". Follow the instructions provided to complete the verification process. Note that the exact steps may vary depending on the domain registrar you are using.
Once the domain is verified, you will see a success message. Click on "Done" to continue.
In the Domains page, you will now see your custom domain listed. Click on the domain to manage its settings.
On the domain settings page, you can configure various options such as adding users, creating email addresses, and managing DNS settings. Explore the different settings and customise them according to your needs.
You can also configure DNS settings for your custom domain to ensure that services like email, SharePoint, and Teams work correctly. On the domain settings page, click on "DNS Management" to access the DNS management interface. Here, you can add or modify DNS records as required.
Finally, you'll want to add users to your new domain and assign them appropriate licenses.
To set up email services for your custom domain, you can create email addresses using your domain. Go to "Users" in the left-hand navigation pane, click on "Active users", and then select "New user" to create new email accounts for your domain.
These steps should help you set up your custom domain in Microsoft365 Admin Centre. For more detailed information and troubleshooting, you can refer to the official Microsoft articles related to each step mentioned above. Simply search for the article titles on the Microsoft website to find the relevant resources.
Please note that the exact steps and options may vary slightly depending on the version of Microsoft365 you are using and your specific configuration.