Create DNS records at Rackspace for Office 365

Check the Domains FAQ if you don't find what you're looking for.

If you manage the DNS records for your domain through Rackspace, follow the steps in this article to verify your domain and set up DNS records for email, Skype for Business Online, and so on.

Rackspace Cloud is not a domain registrar, but if you have a domain registered with another provider and your domain's nameservers have been updated to direct DNS queries to Rackspace, you can use Rackspace Cloud to manage your DNS records as described in this article.

These are the main records to add.

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

To learn about webhosting and DNS for websites with Office 365, see Use a public website with Office 365.

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

    Rackspace_login_C3_201710693725

  2. Select Networking, and then select Cloud DNS.

    Rackspace_NetworkingCloudDNS_C3_20171069429

  3. On the Cloud DNS page, choose your domain name.

    Rackspace_selectDomainName_C3_201710694234

  4. Choose Add Record. Next to Record Type, choose TXT. In the boxes for the new record, type or copy and paste the following values.

    Record Type

    Hostname

    Text

    Time to Live (TTL)

    TXT

    (leave blank)

    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?

    60 Minutes


    Rackspace_TXTforVerificationValues_C3_201710694319

  5. Select Add Record.

  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. Choose Setup > Domains.

  2. On the Domains page, choose the domain that you are verifying.

    Rackspace_O365_selectDomain_C3_201710611401

  3. On the Setup page, choose Start setup.

    Rackspace_O365_startSetup_C3_2017106114018

  4. On the Verify domain page, select Add a TXT record instead, and then choose Next.

    One_O365_AddTXTInstead_C3_2017106163124

  5. Choose Verify.

    One_O365_Verify_C3_2017106163923

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

    Rackspace_login_C3_201710694839

  2. Select Networking, and then select Cloud DNS.

    Rackspace_NetworkingCloudDNS_C3_20171069495

  3. On the Cloud DNS page, choose your domain name.

    Rackspace_selectDomainName_C3_201710694939

  4. Choose Add Record. Next to Record Type, choose MX. In the boxes for the new record, type or copy and paste the following values.

    Record Type

    Hostname

    Mailserver Domain

    Priority

    Time to Live (TTL)

    MX

    (leave blank)

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

    Note: Get your <domain-key> from your Office 365 portal account.

    How do I find this?

    10

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

    60 Minutes


    Rackspace_MXrecordValues_C3_201710610324

  5. Select Add Record to save the record.

  6. If there are any other MX records, delete them. Next to the MX record, select the gear icon, and then select Delete Record. Select Delete Record again to confirm.

    Rackspace_MXrecordDelete_C3_2017106103914

Add the CNAME records that are required for Office 365

Follow the steps below.

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

    Rackspace_login_C3_2017106104058

  2. Select Networking, and then select Cloud DNS.

    Rackspace_NetworkingCloudDNS_C3_2017106104259

  3. On the Cloud DNS page, choose your domain name.

    Rackspace_selectDomainName_C3_2017106104323

  4. Choose Add Record. Next to Record Type, choose CNAME. In the boxes for the new record, type or copy and paste the following values.

    Record Type

    Hostname

    Target (Domain)

    Time to Live (TTL)

    CNAME

    autodiscover

    autodiscover.outlook.com

    60 Minutes

    CNAME

    sip

    sipdir.online.lync.com

    60 Minutes

    CNAME

    lyncdiscover

    webdir.online.lync.com

    60 Minutes

    CNAME

    msoid

    clientconfig.microsoftonline-p.net

    60 Minutes

    CNAME

    enterpriseregistration

    enterpriseregistration.windows.net

    60 Minutes

    CNAME

    enterpriseenrollment

    enterpriseenrollment.manage.microsoft.com

    60 Minutes


    Rackspace_CNAMErecordValues_C3_2017106105027

  5. Select Add Record to save the record.

  6. Repeat the previous steps to create the other five CNAME records. For each record, type of copy and paste the values from the next row of the table above into the boxes for that record.

Add a TXT record for SPF to help prevent email spam

IMPORTANT

You cannot have more than Rackspace TXT record for SPF for a domain. If your domain has more than Rackspace 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 Rackspace 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 in Rackspace by usingthis link. You'll be prompted to log in.

    Rackspace_login_C3_201710610511

  2. Select Networking, and then select Cloud DNS.

    Rackspace_NetworkingCloudDNS_C3_2017106105134

  3. On the Cloud DNS page, choose your domain name.

    Rackspace_selectDomainName_C3_201710610522

  4. Choose Add Record. Next to Record Type, choose TXT. In the boxes for the new record, type or copy and paste the following values.

    Record Type

    Hostname

    Text

    Time to Live (TTL)

    TXT

    (leave blank)

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

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

    60 Minutes


    Rackspace_TXTforSPFValues_C3_2017106105234

  5. Select Add Record to save the record.

Add the two SRV records that are required for Office 365

Follow the steps below.

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

    Rackspace_login_C3_2017106105311

  2. Select Networking, and then select Cloud DNS.

    Rackspace_NetworkingCloudDNS_C3_2017106105334

  3. On the Cloud DNS page, choose your domain name.

    Rackspace_selectDomainName_C3_2017106105355

  4. Choose Add Record. Next to Record Type, choose SRV. In the boxes for the new record, type or copy and paste the following values.

    Record Type

    Service

    Protocol

    Hostname

    Target Domain

    Port

    Priority

    Weight

    Time to Live (TTL)

    SRV (Service)

    sip

    tls

    (leave blank)

    sipdir.online.lync.com

    443

    100

    1

    60 Minutes

    SRV (Service)

    sipfederationtls

    tcp

    (leave blank)

    sipfed.online.lync.com

    5061

    100

    1

    60 Minutes

    Rackspace_SRVrecordValues_C3_201710616219
  5. Select Add Record to save the record.

  6. Repeat the previous steps to create the other SRV record. Type or copy and paste the values from the second row of the table above into the boxes for the second 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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