Create DNS records for Azure DNS zones

If Azure 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 Azure, your domain will be set up to work with Office 365 services.

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.

Change your domain's nameserver (NS) records

Important: You must perform this procedure at the domain registrar where you purchased and registered your domain.

When you signed up for Azure, you created a resource group within a DNS zone, and then assigned your domain name to that resource group. That domain name is registered to an external domain registrar; Azure does not offer domain registration services.

To verify and create DNS records for your domain in Office 365, you first need to change the nameservers at your domain registrar so that they use the Azure nameservers assigned to your resource group.

To change your domain’s name servers at your domain registrar’s website yourself, follow these steps.

  1. Find the area on the domain registrar’s website where you can edit the nameservers for your domain.

  2. Either create two nameserver records by using the values in the following table, or edit the existing nameserver records so that they match these values. An example of Azure assigned nameservers is shown below.

    First nameserver

    Use the name server value assigned by Azure.

    Second nameserver

    Use the name server value assigned by Azure.

    Azure-BP-Redelegate-1-1

    Tip: You should use at least two name server records. If there are any other name servers listed at your domain registrar’s website, you should delete them.

  3. Save your changes.

Note: Your nameserver record updates may take up to several hours to update across the Internet's DNS system. Then your Office 365 email and other services will be all set to work with your domain.

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 Azure by using this link. You'll be prompted to log in first.

    Azure-BP-Configure-1-1
  2. On the Dashboard page, in the All resources area, choose the domain that you want to update.

    Azure-BP-Configure-1-2

  3. On the Settings page for your domain, in the DNS zone area, choose + Record set.

    Azure-BP-Configure-1-3

  4. In the Add record set area, in the boxes for the new record set, choose the values from the following table.

    (Select the Type and TTL unit values from the drop-down lists.)

    Name

    Type

    TTL

    TTL unit

    Value

    @

    TXT

    1

    Hours

    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?

    Azure-BP-Verify-1-1

  5. Choose OK.

    Azure-BP-Verify-1-2

  6. 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.

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

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

    Azure-BP-Configure-1-1

  2. On the Dashboard page, in the All resources area, choose the domain that you want to update.

    Azure-BP-Configure-1-2

  3. On the Settings page for your domain, in the DNS zone area, choose + Record set.

    Azure-BP-Configure-1-3

  4. In the Add record set area, in the boxes for the new record set, choose the values from the following table.

    (Select the Type and TTL unit values from the drop-down lists.)

    Name

    Type

    TTL

    TTL unit

    Preference

    Mail Exchange

    @

    MX

    1

    Hours

    10

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

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

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

    Azure-BP-Configure-2-1

  5. Choose OK.

    Azure-BP-Configure-2-2

  6. If there are any other MX records listed in the MX Records section, you must delete them.

    First, in the DNS zone area, select the MX Record set.

    Azure-BP-Configure-2-3

    Next, select the MX record you want to delete.

    Azure-BP-Configure-2-4

  7. Choose the Context menu (…) , and then choose Remove.

    Azure-BP-Configure-2-5

  8. Choose Save.

    Azure-BP-Configure-2-6

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Add the four CNAME records that are required for Office 365

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

    Azure-BP-Configure-1-1
  2. On the Dashboard page, in the All resources area, choose the domain that you want to update.

    Azure-BP-Configure-1-2

  3. On the Settings page for your domain, in the DNS zone area, choose + Record set.

    Azure-BP-Configure-1-3

  4. Add the first of the four CNAME records.

    In the Add record set area, in the boxes for the new record set, type or copy and paste the values from the first row in the following table.

    (Select the Type and TTL unit values from the drop-down lists.)

    Name

    Type

    TTL

    TTL unit

    Alias

    autodiscover

    CNAME

    1

    Hours

    autodiscover.outlook.com

    sip

    CNAME

    1

    Hours

    sipdir.online.lync.com

    lyncdiscover

    CNAME

    1

    Hours

    webdir.online.lync.com

    msoid

    CNAME

    1

    Hours

    clientconfig.microsoftonline-p.net

    Azure-BP-Configure-3-1

  5. Choose OK.

    Azure-BP-Configure-3-2

  6. Add each of the other three CNAME records.

    In the DNS zone area, choose + Record set. Then, in the empty record set, create a record by using the values from the next row in the table, and again choose OK to complete that record.

    Repeat this process until you have created all four CNAME records.

  7. 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.)

    Name

    Type

    TTL

    TTL unit

    Alias

    enterpriseregistration

    CNAME

    1

    Hours

    enterpriseregistration.windows.net

    enterpriseenrollment

    CNAME

    1

    Hours

    enterpriseenrollment.manage.microsoft.com

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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 Azure by using this link. You'll be prompted to log in first.

    Azure-BP-Configure-1-1
  2. On the Dashboard page, in the All resources area, choose the domain that you want to update.

    Azure-BP-Configure-1-2

  3. In the DNS zone area, choose the TXT record set.

    Azure-BP-Configure-4-1

  4. In the Record set properties area, in the boxes for the new record set, choose the values from the following table.

    (Select the Type and TTL unit values from the drop-down lists.)

    Name

    Type

    TTL

    TTL unit

    Value

    @

    TXT

    1

    Hours

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

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

    Azure-BP-Configure-4-2

  5. Choose Save.

    Azure-BP-Configure-4-3

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Add the two SRV records that are required for Office 365

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

    Azure-BP-Configure-1-1
  2. On the Dashboard page, in the All resources area, choose the domain that you want to update.

    Azure-BP-Configure-1-2

  3. On the Settings page for your domain, in the DNS zone area, choose + Record set.

    Azure-BP-Configure-1-3

  4. Add the first of the two SRV records.

    In the Add record set area, in the boxes for the new record set, choose the values from the first row in the following table.

    (Select the Type and TTL unit values from the drop-down lists.)

    Name

    Type

    TTL

    TTL unit

    Priority

    Weight

    Port

    Target

    _sip._tls

    SRV

    1

    Hours

    100

    1

    443

    sipdir.online.lync.com

    _sipfederationtls._tcp

    SRV

    1

    Hours

    100

    1

    5061

    sipfed.online.lync.com

    Azure-BP-Configure-5-1

  5. Choose OK.

    Azure-BP-Configure-5-2

  6. Add the other SRV record.

    In the boxes for the new record, type or copy and paste the values from the second row of the table.

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.

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Still need help?

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

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