Create DNS records at United Domains for Office 365

If United Domains is your DNS hosting provider, follow the steps in this article to verify your domain and set up DNS records for email, Skype for Business Online, and so on.

These are the main records to add. (Need more help? Get support.)

After you add these records at United Domains, your domain will be set up to work with Office 365 services.

If you have a SharePoint Online Public Website, you can set it up to use your custom domain for the website URL address, like www.your_domain.com.

Note:  Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you’re having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.

Add a TXT record for verification

Before you use your domain with Office 365, we have to make sure that you own it. Your ability to log in to your account at your domain registrar and create the DNS record proves to Office 365 that you own the domain.

Note:  This record is used only to verify that you own your domain; it doesn’t affect anything else. You can delete it later, if you like.

  1. To get started, go to your domains page at United Domains by using this link. You'll be prompted to log in.

    UnitedDomains-BP-Configure-1-1

  2. Under My Domain List, in the Manage Settings column, choose DNS for the domain that you want to edit.

    UnitedDomains-BP-Configure-1-3

  3. In the DNS Records section, in the boxes for the new record, type or copy and paste the values from the following table.

    (You may need to scroll down.)

    Select the Record value from the drop-down list.

    Subdomain

    Record Type

    Value

    (Leave this field empty.)

    TXT Record

    MS=msXXXXXXXX

    Note: This is an example. Use your specific Destination or Points to Address value here, from the table in Office 365.
    How do I find this?

    UnitedDomains-BP-Verify-1-1

  4. Choose the Save control that is indicated in the following illustration.

    UnitedDomains-BP-Verify-1-2

  5. Wait a few minutes before you continue, so that the record you just created can update across the Internet.

Now that you've added the record at your domain registrar's site, you'll go back to Office 365 and request Office 365 to look for the record.

When Office 365 finds the correct TXT record, your domain is verified.

  1. Go to the Domains page.

  2. On the Manage domains page, select the domain that you are verifying and then, in the Action column for that domain, choose Start setup.

    O365-BP-Verify-1-2

  3. On the Add this TXT record to show you own domain_name page, choose Okay, I've added the record.

    O365-BP-Verify-1-3

  4. Choose Next.

    O365-BP-Verify-1-4

Note:  Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you’re having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.

Back to top

Add an MX record so email for your domain will come to Office 365

  1. To get started, go to your domains page at United Domains by using this link. You'll be prompted to log in.

    UnitedDomains-BP-Configure-1-1

  2. Under My Domain List, in the Manage Settings column, choose DNS for the domain that you want to edit.

    UnitedDomains-BP-Configure-1-3

  3. In DNS Records section, in the boxes for the new record, type or copy and paste the values from the following table.

    (You may need to scroll down.)

    Select the Record value from the drop-down list.

    Subdomain

    Record Type

    Value

    (Leave this field empty.)

    MX Record

    10 <domain-key>.mail.protection.outlook.com.

    This value MUST end with a period (.)

    The 10 is the MX priority value. Add it to the beginning of the MX value, separated from the remainder of the value by a space.

    For more information about priority, see What is MX priority?

    Note: Get your <domain-key> from your Office 365 portal account.
    How do I find this?

    UnitedDomains-BP-Configure-2-1

  4. Choose the Save control that is indicated in the following illustration.

    UnitedDomains-BP-Configure-2-2

  5. If there are any other MX records, remove each of them by choosing delete for that record.

    UnitedDomains-BP-Configure-2-3

Back to top

Add the four CNAME records that are required for Office 365

  1. To get started, go to your domains page at United Domains by using this link. You'll be prompted to log in.

    UnitedDomains-BP-Configure-1-1

  2. Under My Domain List, in the Manage Settings column, choose DNS for the domain that you want to edit.

    UnitedDomains-BP-Configure-1-3

  3. Add the first of the four required CNAME records:

    In the DNS Records section, in the boxes for the first new record, type or copy and paste the values from the first row of the following table.

    (You may need to scroll down.)

    Select the Record value from the drop-down list.

    Subdomain

    Record Type

    Value

    autodiscover

    CNAME Record

    autodiscover.outlook.com.

    This value MUST end with a period (.)

    sip

    CNAME Record

    sipdir.online.lync.com.

    This value MUST end with a period (.)

    lyncdiscover

    CNAME Record

    webdir.online.lync.com.

    This value MUST end with a period (.)

    msoid

    CNAME Record

    clientconfig.microsoftonline-p.net.

    This value MUST end with a period (.)

    UnitedDomains-BP-Configure-3-1

  4. Choose + Add new record.

    UnitedDomains-BP-Configure-3-2

  5. Add the second CNAME record:

    Type or copy and paste the values from the second row of the table above into the boxes for the second record, and then choose + Add new record again.

    Add the third and fourth records in the same way, using the values from the third and fourth rows of the table.

  6. Important: If you have Mobile Device Management (MDM) for Office 365, then you must create two additional CNAME records. Follow the procedure that you used for the other four CNAME records, but supply the values from the following table.

    (If you do not have MDM, you can skip this step.)

    Subdomain

    Record Type

    Value

    enterpriseregistration

    CNAME Record

    enterpriseregistration.windows.net.

    This value MUST end with a period (.)

    enterpriseenrollment

    CNAME Record

    enterpriseenrollment-s.manage.microsoft.com.

    This value MUST end with a period (.)

  7. When you've added the final new CNAME record, choose the Save control that is indicated in the following illustration.

    UnitedDomains-BP-Configure-3-3

Back to top

Add a TXT record for SPF to help prevent email spam

Important: You cannot have more than one TXT record for SPF for a domain. If your domain has more than one SPF record, you'll get email errors, as well as delivery and spam classification issues. If you already have an SPF record for your domain, don't create a new one for Office 365. Instead, add the required Office 365 values to the current record so that you have a single SPF record that includes both sets of values. Need examples? Check out these details and sample SPF records. To validate your SPF record, you can use one of these SPF validation tools.

  1. To get started, go to your domains page at United Domains by using this link. You'll be prompted to log in.

    UnitedDomains-BP-Configure-1-1

  2. Under My Domain List, in the Manage Settings column, choose DNS for the domain that you want to edit.

    UnitedDomains-BP-Configure-1-3

  3. In the DNS Records section, in the boxes for the new record, type or paste the values from the following table.

    (You may need to scroll down.)

    Select the Record value from the drop-down list.

    Subdomain

    Record Type

    Value

    (Leave this box empty.)

    TXT Record

    v=spf1 include:spf.protection.outlook.com -all

    Note: We recommend copying and pasting this entry, so that all of the spacing stays correct.

    UnitedDomains-BP-Configure-4-1

  4. Choose the Save control that is indicated in the following illustration.

    UnitedDomains-BP-Configure-4-2

Back to top

Add the two SRV records that are required for Office 365

  1. To get started, go to your domains page at United Domains by using this link. You'll be prompted to log in.

    UnitedDomains-BP-Configure-1-1

  2. Under My Domain List, in the Manage Settings column, choose DNS for the domain that you want to edit.

    UnitedDomains-BP-Configure-1-3

  3. Add the first of the two required SRV records:

    In the DNS Records section, in the boxes for the new record, type or copy and paste the values from the first row of the following table.

    (You may need to scroll down.)

    Select the Record value from the drop-down list.

    Subdomain

    Record Type

    Value

    _sip._tls

    SRV Record

    100 1 443 sipdir.online.lync.com.

    This value MUST end with a period (.)

    Note: We recommend copying and pasting this entry, so that all of the spacing stays correct.

    _sipfederationtls._tcp

    SRV Record

    100 1 5061 sipfed.online.lync.com.

    This value MUST end with a period (.)

    Note: We recommend copying and pasting this entry, so that all of the spacing stays correct.

    UnitedDomains-BP-Configure-5-1

  4. Choose + Add new record.

    UnitedDomains-BP-Configure-5-2

  5. Add the second SRV record:

    Type or copy and paste the values from the second row of the table above into the boxes for the second record.

    UnitedDomains-BP-Configure-5-3

  6. When you've added both SRV records, choose the Save control that is indicated in the following illustration.

    UnitedDomains-BP-Configure-5-4

Note:  Typically it takes about 15 minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you’re having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.

Back to top

Still need help?

Get help from the Office 365 community forums Admins: Sign in and create a service request Admins: Call Support

Back to top

Share Facebook Facebook Twitter Twitter Email Email

Was this information helpful?

Great! Any other feedback?

How can we improve it?

Thank you for your feedback!

×