To use a custom domain you need more steps and knowledge. I recommend getting a consultant near you. He or she will setup your environment in about 1 to 3 hours. Depends if all the functionality you need. Answer from der_klee on reddit.com
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Fit Small Business
fitsmallbusiness.com › microsoft-365-business-email-setup
How to Create a Business Email With Outlook in 5 Easy Steps
February 19, 2025 - To create an Outlook business email, you’ll need a custom email domain, aka what comes after the “@” symbol in your email (like “@fitsmallbusiness.com” instead of “@outlook.com”). You can get that by upgrading to a Microsoft 365 Business plan, which also comes with Microsoft’s productivity tools, including Microsoft Word and Excel and its cohorts.
People also ask

Is Outlook email free for business?

Microsoft Outlook offers a free plan, but it doesn’t come with a custom domain (only an @outlook.com one), which may not be suitable for business use. It also only accommodates one user. Microsoft 365’s business plans start at $6 a month and let you use a custom email domain (e.g., [email protected]) and add multiple users to your organization. It also comes with the Microsoft Office productivity suite, including Word, Excel, and PowerPoint.

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fitsmallbusiness.com
fitsmallbusiness.com › microsoft-365-business-email-setup
How to Create a Business Email With Outlook in 5 Easy Steps
How do I create a professional email in Outlook?

To create a professional email in Outlook, you’ll first need to subscribe to a Microsoft 365 Business plan, which lets you add a custom domain to your email account to get a branded email address and not a generic “@outlook.com” one. After subscribing to a Microsoft 365 plan, create your new email address and finish setting up your account by adding a custom domain, inviting your team members, and installing the Microsoft 365 platform on your computer.

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fitsmallbusiness.com
fitsmallbusiness.com › microsoft-365-business-email-setup
How to Create a Business Email With Outlook in 5 Easy Steps
Should I use Outlook or Gmail for business email?

Use Outlook for your business email if you need a lot of email and cloud storage. Microsoft provides up to 50GB of mail storage and 1TB of cloud storage on all its Business plans. It’s also a good option for more productivity tools like a collaborative workspace or online video editor. Choose Gmail if you want an easier setup process and beginner-friendly interface or are more familiar with the Google Workspace productivity suite.

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fitsmallbusiness.com
fitsmallbusiness.com › microsoft-365-business-email-setup
How to Create a Business Email With Outlook in 5 Easy Steps
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Microsoft Learn
learn.microsoft.com › en-us › microsoft-365 › admin › simplified-signup › signup-business-standard
Sign up for Microsoft 365 Business Standard - Microsoft 365 admin | Microsoft Learn
Sign in to Microsoft 365 with this email address. For example, [email protected]. Create a password on the next page, and select Create account to continue. On the next page, read about how we handle your data and select whether you want ...
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Microsoft Learn
learn.microsoft.com › en-us › microsoft-365 › admin › setup › setup-business-basic
Set up Microsoft 365 Business Basic - Microsoft 365 admin | Microsoft Learn
From the How you'll sign in page on the Microsoft 365 Business Standard sign up, choose Create a new business email account (advanced).
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SoftwareKeep
softwarekeep.com › blogs › how-to › set-up-office-365-email-for-business
Step by Step Guide to Set Up Microsoft 365 Business eMail
December 16, 2024 - To set up a business email in Office 365, navigate to Microsoft.com > click “Buy Now” > select the “For Business” tab > Select a plan. Link an existing corporate domain, or purchase a new one.
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White Peak Digital
whitepeakdigital.com › blog › how-to-setup-a-custom-email-with-microsoft-365
How to Setup a Custom Email with Microsoft 365
May 11, 2025 - To begin, visit the Microsoft 365 website and choose between Buy now or Try free for one month. The steps will vary slightly based on your choice, but the overall process is similar.
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Top answer
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Hello Next Service,

Good day!

Thank you for posting to Microsoft Community. We are happy to help you.

Setting up a business email with Microsoft 365 can seem overwhelming at first, but I'm here to guide you through the process. Let's break it down into a few steps:

  1. Purchase a Microsoft 365 Subscription: If you haven't already, you'll need to sign up for a Microsoft 365 subscription. You can choose the appropriate plan based on your business needs, which includes email services along with other productivity tools. Purchase or trial an Office 365 for Business subscription via https://products.office.com/en-us/business/compare-more-office-365-for-business-plans, and some of the subscriptions.

Example: sign up for the ‘Microsoft 365 Business Premium’ subscription and follow all the steps.

  1. Choose a Domain Name: Next, you'll need to decide on a domain name for your business email. Ideally, it should reflect your company or brand name. If you already own a domain, you can use that. Otherwise, Microsoft offers domain registration services, or you can purchase one from a domain registrar.
  2. Configure DNS Settings: Once you have a domain name, you'll need to configure the DNS (Domain Name System) settings to point to Microsoft 365. This involves adding some specific DNS records, such as MX (Mail Exchanger) records, to your domain's DNS management panel. This step is crucial for routing your business emails correctly.

Reference: Add a domain to Microsoft 365 - Microsoft 365 admin | Microsoft Learn

  1. Create User Accounts: After configuring the DNS settings, you can start creating user accounts for your business. These accounts will have email addresses associated with your domain (e.g., ******@yourbusiness.com). Use the Microsoft 365 admin center or the Exchange Admin Center to add and manage user accounts.
  2. Set Up Email Clients: To access your business email, you have different options. You can use the web-based Outlook app (Outlook Web App) or configure third-party email clients like Microsoft Outlook, Apple Mail, or Thunderbird with your Microsoft 365 account. Each email client may have specific configuration steps, so it's best to follow the instructions provided by Microsoft or the client you're using.

Reference: Add an email account to Outlook - Microsoft Support

  1. Configure Email Security: It's crucial to configure proper security measures for your business email, such as enabling multi-factor authentication (MFA), setting up spam filters, and implementing email encryption if necessary. These measures help protect your account and ensure the confidentiality of your communications.

Remember, can assist you with any specific questions or issues you may encounter along the way. Please feel free to let us know if there are any questions or if we've got you wrong. We will keep assisting you based on the information you provide. We sincerely appreciate your patience and cooperation.

Sincerely,

Eben Ezer Tres | Microsoft Community Moderator

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Super User
superuser.com › questions › 1857798 › how-do-i-create-a-windows-user-profile-using-a-microsoft-365-for-business-email
How do I create a Windows User Profile using a Microsoft 365 for business email address? - Super User
During the OOBE if I try using a Ms365 for business email address is rejected as not being a valid Microsoft address. Ms365 support told me to use a Microsoft personal email address or a Local profile to get started, then use Access Work or School and add the Ms365 address that way, "Connecting it" using Entra ID.
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Microsoft Learn
learn.microsoft.com › en-us › microsoft-365 › admin › setup › signup-business-basic
Sign up for Microsoft 365 Business Basic - Microsoft 365 admin | Microsoft Learn
On the Microsoft 365 Business Basic page, choose the number of users, subscription length and billing term you prefer, then select Next. Enter an email address that you already use.
Top answer
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1

Dear Edmund Comber,

Good day! Thank you for posting to Microsoft Community.

I do apologize for the deleted thread, but you created a duplicate thread, and for the first thread you created our moderator provide possible answers for the query, you can refer to: How do I use my Non Microsoft email account (******@mycompany.com) as - Microsoft Community. So, since the second thread was a duplicate, our moderators deleted it to avoid confusion for other users in the community.

However, to answer your questions, when you register for Microsoft 365 business standard, you should enter your domain, then based on that domain Microsoft provide email address. Let's say you have a domain called mycompany, so Microsoft provides ******@mycompany.onmicrosoft.com email address as an initial email account. Once you completed the registration and sign in to Microsoft 365 admin center, you can add or verify your domain (mycompany.com), then you can create your email address you want to have and assign license. To do this kindly refer to the following articles.

  • Set up Microsoft 365 Business Standard with a new or existing domain - Microsoft 365 admin | Microsoft Learn
  • Add a custom domain name - Microsoft Support
  • Add users and assign licenses in Microsoft 365 - Microsoft 365 admin | Microsoft Learn

I look forward to your update. Please feel free to let me know how it goes or if I got you wrong. If you still have any concerns, please let me know so I can provide more suggestions. 

Thank you for your precious time. Have a nice day.Sincerely,Libeamlak | Microsoft Community Moderator

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Hi Libeamlak,

Thank you so much, I was not aware that I had made a dual post and this was nor stated in the message I got about the post being deleted.

The answer I got from the original post that you directed me to was extremely helpful, and I would not have known it was there without your response, so thank you very much indeed.

The links you posted to me are absolutely spot on, so thank you once again.

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ThemeIsle
themeisle.com › blog › how to set up a custom email address with microsoft office 365
How to Set Up a Custom Email Address With Microsoft Office 365
February 7, 2024 - First, log in to the Microsoft 365 admin center and follow the setup wizard for Microsoft 365, which is what you need to set up your email. Note that to create a custom-branded email, you will need to have the Microsoft 365 Business Basic plan ...
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Microsoft Learn
learn.microsoft.com › en-us › microsoft-365 › admin › setup › setup
Set up Microsoft 365 for business - Microsoft 365 admin | Microsoft Learn
Learn how to set up your Microsoft Business Premium, Microsoft 365 Business Standard, Microsoft 365 Business Basic, Microsoft 365 Apps for business, or Office 365 Education subscription.
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Microsoft Learn
learn.microsoft.com › en-us › microsoft-for-startups › m365-domain
How to buy a domain and create a business email using Microsoft 365 | Microsoft Learn
Learn how to purchase a domain and set up a business email address using the Microsoft 365 Business Premium benefit from your Microsoft for Startups Investor Offer. Find detailed steps for buying a domain using Office 365 Premium, verifying domain ownership, adding DNS records, and configuring various Office 365 services.
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Orlando IT Services
gocloudaccess.com › how-to-set-up-microsoft-365-business-email
How to Securely Set Up Microsoft 365 Business Email - Orlando IT
March 6, 2025 - Lastly, if required, transfer the domain to Microsoft 365. Now that your domain’s in place, let’s move on to creating your business email account. You’ll need to understand the account setup process and how to configure your email preferences.
Address   695 Venture Circle, 32807, Orlando
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Maidenheadcs
maidenheadcs.co.uk › knowledge-base › how-to-setup-a-new-microsoft-365-business-account
How to setup a new Microsoft 365 Business account - Maidenhead Computer Services
June 19, 2025 - In this step we show you how to purchase the Microsoft 365 Business plan. We assume you have bought one of the following: ... 1. Choose how many licenses you need, length of subscription and how often you want to be billed. 2. Click Next. ... You may already have a business Microsoft account but if not then you will create a new one.
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Microsoft Learn
learn.microsoft.com › en-us › microsoft-365 › admin › setup › signup--apps-business
Sign up for Microsoft 365 Apps for business - Microsoft 365 admin | Microsoft Learn
This option applies to Microsoft 365 Business Standard and Microsoft 365 Apps for Business. You sign in to Microsoft 365 with this email address. For example, [email protected].
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37

Hi Peter

I'm AnnaThomas and I'd happily help you with your question. In this Forum, we are Microsoft consumers just like yourself.

Here's how to do it:

Log in to your Microsoft 365 account at https://www.office.com/signin.

Once you're signed in, click on the "Outlook" icon.

Click on the "Settings" icon in the upper-right corner (it looks like a gear).

Select "View all Outlook settings" at the bottom of the dropdown menu.

In the "Settings" page, click on "Mail" and then "Sync email."

Under the "Connected accounts" section, click on "Add a connected account."

Enter the email address and password for the account you want to add, and follow the on-screen instructions to complete the setup process.

Alternatively, you can create a new email address for yourself or a family member by following these steps:

Go to https://account.microsoft.com/.

Click on "Your info" and then "Manage how you sign in to Microsoft."

Click on "Add email."

Enter the new email address you want to create, and follow the on-screen instructions to complete the setup process.

I hope this helps ;-), let me know if this is contrary to what you need, I would still be helpful to answer more of your questions.

Best Regards,

AnnaThomas

Give back to the community. Help the next person with this problem by indicating whether this answer solved your problem. Click Yes or No at the bottom.

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No it does not, you can add any valid mail account you have to MS Outlook, the mail component

An outlook.com mail account is free from MS https://outlook.live.com/owa/

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@BAMA IT ,
It sounds like you are trying to create Microsoft accounts using your company's email addresses, but the system is rejecting them. There are a few potential reasons why this might be happening:

  • Microsoft may not allow you to use a business email address to create a personal Microsoft account. In this case, you need to use a different email address (such as a personal email address) to create the Microsoft account.
  • Your company may have policies that prevent you from using business email addresses to create personal accounts. In this case, you would need to check with your company's IT department or email administrator to see if there is a way to create Microsoft accounts using your company's email addresses.
  • There could be a technical issue preventing you from creating the Microsoft accounts. In this case, you may want to try again later or contact Microsoft support for assistance.

If you want to use your company's email addresses to log into Microsoft services, the best way to do this would be to use Azure Active Directory (AAD) to manage the accounts. With AAD, you can create and manage user accounts for your company and use these accounts to log into Microsoft services such as Office 365, Microsoft Teams, and others. This will allow you to use your company's email addresses to log into these services while still maintaining control over the accounts and ensuring that they are only used for business purposes.

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Please "Accept as Answer" and Upvote if any of the above helped so that it can help others in the community looking for remediation for similar issues.

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You can create an alias, then you'll be able to use that alias for sign in anywhere you can sign in with your microsoft account.
https://support.microsoft.com/en-us/office/add-or-remove-an-email-alias-in-outlook-com-459b1989-356d-40fa-a689-8f285b13f1f2

--please don't forget to upvote and Accept as answer if the reply is helpful--