Create DNS records at Namecheap for Office 365

If Namecheap 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 Namecheap, 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.

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.

Follow the steps below.

  1. To get started, go to your domains page at Namecheap by using this link. You'll be prompted to Sign in and Continue.

    Namecheap-BP-Configure-1-1

  2. On the Landing page, under Account, select Domain List from the drop-down list.

    Namecheap-BP-Configure-1-2

  3. On the Domain List page, find the name of the domain that you want to edit, and then choose Manage.

    Namecheap-BP-Configure-1-3

  4. Choose Advanced DNS.

    Namecheap-BP-Configure-1-4

  5. In the HOST RECORDS section, choose ADD NEW RECORD.

    Namecheap-BP-Configure-1-5

  6. In the Type drop-down, select TXT Record.

    Note: The Type drop-down automatically appears when you choose ADD NEW RECORD.

    Namecheap-BP-Verify-1-1

  7. In the boxes for the new record, type or copy and paste the values from the following table.

    (Select the TTL value from the drop-down list.)

    Type

    Host

    Value

    TTL

    TXT

    @

    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?

    30 min

    Namecheap-BP-Verify-1-2

  8. Choose the Save Changes (check mark) control.

    Namecheap-BP-Verify-1-3

  9. 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

Follow the steps below.

  1. To get started, go to your domains page at Namecheap by using this link. You'll be prompted to Sign in and Continue.

    Namecheap-BP-Configure-1-1

  2. On the Landing page, under Account, select Domain List from the drop-down list.

    Namecheap-BP-Configure-1-2

  3. On the Domain List page, find the name of the domain that you want to edit, and then choose Manage.

    Namecheap-BP-Configure-1-3

  4. Choose Advanced DNS.

    Namecheap-BP-Configure-1-4

  5. In the MAIL SETTINGS section, select Custom MX from the Email Forwarding drop-down list.

    (You may have to scroll down.)

    Namecheap-BP-Configure-2-1

  6. Choose Add New Record.

    Namecheap-BP-Configure-2-2-1

  7. In the boxes for the new record, type or copy and paste the values, from the following table.

    (The Priority box is the unnamed box to the right of the Value box. Select the TTL value from the drop-down list.)

    Type

    Host

    Value

    Priority

    TTL

    MX Record

    @

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

    This value MUST end with a period (.)

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

    0

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

    30 min

    Namecheap-BP-Configure-2-2-2

  8. Choose the Save Changes (check mark) control.

    Namecheap-BP-Configure-2-3

  9. If there are any other MX records, use the following two-step process to remove each of them:

    First, choose the Delete icon (trash can) for the record that you want to remove.

    Namecheap-BP-Configure-2-4

    Second, choose Yes to confirm the deletion.

    Namecheap-BP-Configure-2-5

    Remove all MX records except for the one that you added earlier in this procedure.

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Add the four CNAME records that are required for Office 365

Follow the steps below.

  1. To get started, go to your domains page at Namecheap by using this link. You'll be prompted to Sign in and Continue.

    Namecheap-BP-Configure-1-1

  2. On the Landing page, under Account, select Domain List from the drop-down list.

    Namecheap-BP-Configure-1-2

  3. On the Domain List page, find the name of the domain that you want to edit, and then choose Manage.

    Namecheap-BP-Configure-1-3

  4. Choose Advanced DNS.

    Namecheap-BP-Configure-1-4

  5. In the HOST RECORDS section, choose ADD NEW RECORD.

    Namecheap-BP-Configure-1-5

  6. In the Type drop-down, select CNAME Record.

    Note: The Type drop-down automatically appears when you choose ADD NEW RECORD.

    Namecheap-BP-Configure-3-1

  7. In the empty boxes for the new record, select CNAME for the Record Type, and then type or copy and paste the values from the first row in the following table.

    Type

    Host

    Value

    TTL

    CNAME

    autodiscover

    autodiscover.outlook.com.

    This value MUST end with a period (.)

    3600

    CNAME

    sip

    sipdir.online.lync.com.

    This value MUST end with a period (.)

    3600

    CNAME

    lyncdiscover

    webdir.online.lync.com.

    This value MUST end with a period (.)

    3600

    CNAME

    msoid

    clientconfig.microsoftonline-p.net.

    This value MUST end with a period (.)

    3600

    Namecheap-BP-Configure-3-2

  8. Choose the Save Changes (check mark) control.

    Namecheap-BP-Configure-3-3

  9. Using the preceding four steps and the values from the other three rows in the table, add each of the other three CNAME records.

  10. 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.)

    Type

    Host

    Value

    TTL

    CNAME

    enterpriseregistration

    enterpriseregistration.windows.net.

    This value MUST end with a period (.)

    30 min

    CNAME

    enterpriseenrollment

    enterpriseenrollment.manage.microsoft.com.

    This value MUST end with a period (.)

    30 min

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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.

Follow the steps below.

  1. To get started, go to your domains page at Namecheap by using this link. You'll be prompted to Sign in and Continue.

    Namecheap-BP-Configure-3-3

  2. On the Landing page, under Account, select Domain List from the drop-down list.

    Namecheap-BP-Configure-1-2

  3. On the Domain List page, find the name of the domain that you want to edit and then choose Manage.

    Namecheap-BP-Configure-1-3

  4. Choose Advanced DNS.

    Namecheap-BP-Configure-1-4

  5. In the HOST RECORDS section, choose ADD NEW RECORD.

    Namecheap-BP-Configure-1-5

  6. In the Type drop-down, select TXT Record.

    Note: The Type drop-down automatically appears when you choose ADD NEW RECORD.

    Namecheap-BP-Configure-4-1

  7. In the boxes for the new record, type or copy and paste the following values from the following table.

    (Select the TTL value from the drop-down list.)

    Type

    Host

    Value

    TTL

    TXT

    @

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

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

    30 min

    Namecheap-BP-Configure-4-2

  8. Choose the Save Changes (check mark) control.

    Namecheap-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 Namecheap by using this link. You'll be prompted to sign in.

    Namecheap-BP-Configure-1-1

  2. On the Landing page, under Account, select Domain List from the drop-down list.

    Namecheap-BP-Configure-1-2

  3. On the Domain List page, find the name of the domain that you want to edit and then choose Manage.

    Namecheap-BP-Configure-1-3

  4. Choose Advanced DNS.

    Namecheap-BP-Configure-1-4

  5. In the HOST RECORDS section, choose ADD NEW RECORD.

    Namecheap-BP-Configure-1-5

  6. In the Type drop-down, select SRV Record.

    Note: The Type drop-down automatically appears when you choose ADD NEW RECORD.

    Namecheap-BP-Configure-5-1

  7. In the empty boxes for the new records, type or copy and paste the values from the first row in the following table.

    Service

    Protocol

    Priority

    Weight

    Port

    Target

    TTL

    _sip

    _tls

    100

    1

    443

    sipdir.online.lync.com.

    This value MUST end with a period (.)

    30 min

    _sipfederationtls

    _tcp

    100

    1

    5061

    sipfed.online.lync.com.

    This value MUST end with a period (.)

    30 min

    Namecheap-BP-Configure-5-2

  8. Choose the Save Changes (check mark) control.

    Namecheap-BP-Configure-5-3

  9. Using the preceding four steps and the values from the second row in the table, add the other SRV record.

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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