License & Subscription Issues

How to Create a Business Email Account in Microsoft 365 Business Basic

Huda Qurayshi Sep 25, 2026 870 views

Question details

The user needs to set up a business email account using a custom domain on a Microsoft 365 Business Basic trial, but licenses and subscriptions are not immediately visible.

How to Create a Business Email Account with Microsoft 365 Business Basic

Product: Microsoft 365 Business Basic
Device & OS: not provided
Scenario: Setting up user mailboxes and verifying a custom domain after initiating a Microsoft 365 business trial.
Observed behavior: The admin center does not immediately display the active subscriptions or available licenses, preventing the immediate creation of new user mailboxes.

Before you start

Ensure you have global administrator access to your Microsoft 365 Admin Center and the login credentials for your domain registrar to modify DNS records.

Solution 1Recommended

Configure Custom Domain and Assign Email Licenses

Follow this standard setup process to verify your domain, add user accounts, and assign the necessary licenses to create active mailboxes.

To use a customized business email, you must first bind your domain to Microsoft 365 and then assign a valid Business Basic license to each new user. Mailboxes cannot be generated without an assigned license.

Verify Subscription Availability

Navigate to the Microsoft 365 Admin Center, go to 'Billing' and select 'Your products' to confirm your trial or paid subscription is fully active.

Add and Configure Your Domain

Go to 'Settings' > 'Domains', click 'Add domain', and enter your custom domain. Follow the prompts to add the required TXT, MX, and CNAME records to your domain registrar's DNS settings.

Create User Accounts

Navigate to 'Users' > 'Active users' and click 'Add a user'. Fill in the required details, including the desired email address utilizing your newly added custom domain.

Assign Licenses to Generate Mailboxes

During the user creation process, check the box to assign a 'Microsoft 365 Business Basic' license to the user. This step triggers the system to provision the backend Exchange mailbox.

Configure Custom Domain and Assign Email Licenses

Trial Limitations: Trial subscriptions typically include up to 25 licenses. You must convert the trial to a paid plan before the trial period ends to maintain access to these mailboxes.

Solution 2

Resolve Missing Subscriptions or Licenses

Use these steps if your newly purchased trial licenses are not showing up in the Admin Center.

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Frequently Asked Questions

Why can't I see my licenses in the Microsoft 365 Admin Center immediately?

It can take a short time for Microsoft servers to provision a newly purchased trial or subscription. If your licenses are still missing after a few hours, try logging out and back in, or open a support ticket.

How many licenses are included in the Microsoft 365 Business Basic trial?

A standard Microsoft 365 Business Basic trial typically includes up to 25 licenses, allowing you to set up multiple email accounts for your team during the 30-day evaluation period.

Can I keep my custom domain email address after the trial ends?

Yes, but you must convert your trial subscription to a paid plan before the expiration date. This ensures uninterrupted email service and retains all mailbox data tied to your custom domain.

What DNS records are required for a Microsoft 365 business email?

You typically need to add an MX record for mail routing, a TXT record for domain verification and SPF (spam prevention), and CNAME records for Autodiscover services through your domain registrar.

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