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Add accepted domain in Exchange Server

How to add an accepted domain in Exchange Server, and why do you want to configure accepted domains in Exchange? If you don’t set up an accepted domain in Exchange, you can’t receive emails to that domain. In this article, you will learn how to add an accepted domain in Exchange Server.

Introduction to accepted domain

Accepted domains are the SMTP namespaces, also known as address spaces. You configure the domain in the Exchange organization to receive email messages.

In our example, we registered the domain exoip.com. Next, we configured a mail exchanger (MX) record in public DNS for exoip.com. Now we need to configure exoip.com as an accepted domain in the Exchange organization to accept messages addressed to @exoip.com recipients.

Add accepted domain in Exchange Admin Center

Sign in to Exchange Admin Center as administrator or with an account with the privileges to create the accepted domain in Exchange.

Navigate to mail flow > accepted domains. Click the + icon.

Add accepted domain in Exchange 2016 create new

Fill in the Name field and Accepted domain field. Click Save.

Note: You can’t make the domain as default when creating a new domain. You have to make the domain as default after you create the new accepted domain.

In our example, it’s the domain exoip.com.

Add accepted domain in Exchange 2016 add fields

Click on the domain that you added. Click the edit icon.

Add accepted domain in Exchange 2016 showing default domain

Select Make this the default domain checkbox. Click the Save button.

Add accepted domain in Exchange 2016 make default domain

Confirm that the domain shows as default.

Do you like to configure an accepted domain with PowerShell? Read more in the next step.

Add accepted domain with PowerShell

Run Exchange Management Shell as administrator. Let’s combine the New-AcceptedDomain cmdlet and Set-AcceptedDomain cmdlet. This will create a new default domain named exoip.ia.

[PS] C:\>New-AcceptedDomain -Name "exoip.ai" -DomainName "exoip.ai" -DomainType Authoritative | Set-AcceptedDomain -MakeDefault $true

If you like to add a new accepted domain without making it default, remove the Set-AcceptedDomain cmdlet.

[PS] C:\>New-AcceptedDomain -Name "exoip.ai" -DomainName "exoip.ai" -DomainType Authoritative

Name        DomainName    DomainType       Default
----        ----------    ----------       -------
exoip.ai    exoip.ai      Authoritative    False

Get accepted domains with PowerShell

Sometimes you want to get a list of the accepted domains. What is a better way than using PowerShell? Run the Get-AcceptedDomain cmdlet.

[PS] C:\>Get-AcceptedDomain

Name           DomainName     DomainType       Default
----           ----------     ----------       -------
exoip.local    exoip.local    Authoritative    False
exoip.com      exoip.com      Authoritative    True
exoip.ai       exoip.ai       Authoritative    False

That’s it!

Keep reading: Add second domain to Exchange Server »

Conclusion

You learned how to add an accepted domain in Exchange Server. Do you like to make the domain as default? Add the domain first. After that, edit the domain and make the domain as default.

Did you enjoy this article? You may also like Setup SPF record for Exchange Server. Don’t forget to follow us and share this article.

ALI TAJRAN

ALI TAJRAN

ALI TAJRAN is a passionate IT Architect, IT Consultant, and Microsoft Certified Trainer. He started Information Technology at a very young age, and his goal is to teach and inspire others. Read more »

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