If you have registered your domain with internex and want to use it with Microsoft 365 (e.g., for email, Teams, or SharePoint), please follow the official instructions from Microsoft and internex.
Adding a domain to Microsoft 365
Microsoft explains step-by-step how to add your domain to your Microsoft 365 account: Add a domain to Microsoft 365
Obtaining DNS records from Microsoft
After adding your domain to Microsoft, you need to create certain DNS records (e.g., MX, TXT, CNAME, and SRV records) so that your domain connects correctly to Microsoft 365.
Microsoft also provides the necessary DNS values in a separate guide: Add DNS records to connect your domain
Editing DNS settings at internex
This article explains how to adjust your domain's DNS settings directly in the internex customer area: How can I change my domain's DNS settings?
After entering the DNS records, it can take up to 24 hours for all changes to take effect worldwide. Only then will your domain be fully connected to Microsoft 365.
1 - Adding your domain
Before you can set up DNS, you must add the domain in the Microsoft 365 admin center.¹
In the Microsoft 365 admin center, select "Setup" from the left menu.
Under "Sign-in and security," click "Set up your custom domain," then "Get started" -> "Add domain."
Enter the name of the domain you want to add and click "Use this domain."
Next, you must verify domain ownership. Please select "Add a TXT record to the domain's DNS records."
In the next step, you will receive the TXT record, which must be set via Domain Manager Pro (Step 2 - Verification).
2 - Domain verification in Microsoft 365
After you have registered your domain as your desired domain with Microsoft, you must verify it using a TXT record.² The corresponding record, which Microsoft provides in the Admin Center, looks like this as an example:
Subdomain | TYPE | Value |
@ | TXT |
|
Please note that you must change {unique ID from the Admin Center} to the string displayed under "TXT value" in the Microsoft 365 admin center.
Enter the TXT record in your Domain Manager Pro under your domain's DNS settings. Instructions can be found here: How can I change my domain's DNS settings?
Once the TXT record is set (this change can take up to 24 hours), return to the Microsoft 365 admin center and click "Verify" for your domain to complete the verification.
After successful verification, you need to add additional DNS records to properly connect Microsoft 365 services (such as Exchange Online, Teams, and SharePoint).
To do this, select "Add your own DNS records" in the admin center and follow the instructions.
3 - DNS Settings for Microsoft 365
3.1 - DNS Records for Email
To receive email via Microsoft 365, the following MX record must be created in Domain Manager Pro:
Subdomain | TYPE | Priority | Value |
@ | MX | 0 |
|
Please note that you must change {yourdomain-at} to your own domain. You can find the exact entry in the Microsoft 365 Admin Center.
To be able to send with Microsoft 365, an SPF record is also required:
Subdomain | TYPE | Value |
@ | TXT |
|
It's possible that another SPF record already exists for the same subdomain. If this is still required, the existing record must be extended with:
include:spf.protection.outlook.com
Please note that a DNS change can take up to 24 hours!
In order for your mailbox to work in the mail client, a CNAME record must be created:
Subdomain | TYPE | Value |
autodiscover | CNAME |
|
Please note that the CNAME can only be set if no other record exists for the subdomain autodiscover.
3.2 - CNAME records for additional services
CNAME records are required to use additional Microsoft 365 services. You can view the respective record directly in the Microsoft 365 Admin Center and add it to your domain in Domain Manager Pro:
Subdomain | TYPE | Value |
| CNAME |
|
3.3 - SRV Record for Teams
To link Microsoft 365 with Teams, the following SRV record is required:³
Subdomain | TYPE | Priority | Value |
sipfederationtls | SRV | 100 |
|
Sources: