How do I set up Microsoft 365 mail on my domain name?

Once you have verified your domain name with Microsoft 365 (formally Office 365), you can configure the DNS for your domain name in your 123 Reg Control Panel. You can find the DNS entries required by following the steps listed here.

To set up Microsoft 365 mail on your domain name, you’ll need to ensure your domain is pointed to the 123 Reg nameservers. Otherwise, you will be unable to manage them from the 123 Reg Control Panel.

Please note: it will take between 24-48 hours for any new nameserver (DNS) records to become active. For more information on changing your DNS records, please view the following article: How do I change the nameservers for my domain name?

Step 1 of 8

Start by logging in to your 123 Reg Control Panel. From there, select your desired domain from the drop-down menu within the Manage Active Products section and click Manage.

Alternatively, you can scroll down to the Domain names section and select the relevant domain name from the drop-down menu. Once selected, click Manage.

Select Manage

 

Step 2 of 8

Scroll down to the Advanced Domain Settings section and select Manage DNS.

Click Manage DNS

 

Step 3 of 8

Select Change within the Email Settings (MX Records) section.

Select Change

 

Step 4 of 8

Choose an external email service from the drop-down list.

Choose Email service

 

Step 5 of 8

In the Location of service: field that appears, enter your Microsoft 365 MX record that you have been provided with (i.e yourdomainname-co-uk0ii.mail.eo.outlook.com) and select Point to service.

Enter Location Information

 

Step 6 of 8

A pop-up window will appear, asking if you wish to confirm your changes. Click Confirm to complete the process.

Confirm Changes

 

Step 7 of 8

Select the Advanced DNS tab.

Select Advanced DNS

 

Step 8 of 8

Add the remaining DNS records to configure Microsoft 365 on your domain name one at a time, pressing the Add new entry button between each record.

Add DNS records

Once completed, your DNS records section will look like this:

Complete DNS records

Please note: if you require an SRV, CNAME and SPF record to be added to your domain name, please read the following articles: