Use your existing domain name with Comcast Business email and web hosting

Updated 7/19/2017 6:42:31 PM by Comcast Expert


This article applies to Microsoft® Hosted Exchange customers who have not yet been migrated to Microsoft® Office 365. If you are currently using Office 365, please visit Microsoft’s Set up Office 365 for business support page.

Follow these instructions to integrate your current domain name with your Comcast Business email, SharePoint and web hosting services. For more information on registering a new domain, please read Register a custom domain name.

Move and activate existing domain

  1. Step 1:

    Sign in to My Account and select Websites from the Manage Services menu.

    Note: You must be the Primary Manager or Services Manager to manage domain names.

  2. Step 2:


    Select Register/bring domain.

  3. Step 3:


    Select the radio button for Bring existing domain.

  4. Step 4:


    If you are already using Microsoft email through Comcast or have already registered a domain through Comcast, enter in the domain you want to transfer.

    If you do not have Microsoft email through Comcast or have not registered a domain, a second box will appear and be pre-populated with your business name. This information is required to complete your domain transfer.

    Select Continue.

  5. Step 5:


    From the Domain ownership verification page, copy your Source alias and Target value and provide the information to your current DNS provider.

  6. Step 6:


    Sign back in to your account and select Websites from the Manage Services menu.

  7. Step 7:


    Select Manage domains.

  8. Step 8:


    If your DNS provider has successfully added the CNAME and it has propagated correctly, Steps 2 and 3 will be displayed with green check marks on the Domain ownership verification page. If completed, select I’m done.

    If not completed, Steps 2 and 3 will be displayed as “Not Completed.” Verify that your CNAME entries are correct and try again.

  9. Step 9:

    Back up your email and website. These files cannot be transferred from their current provider to Comcast.

  10. Step 10:


    Check that your domain displays Active on the Manage domains page (and confirm that you have backed up your email and web hosting files).


Activate email and website hosting

Once your domain is active, you can choose to use Comcast Business for email hosting, web hosting or both.

  • Email and website hosting

    1. Access your registrar (e.g.,, Network Solutions)

    2. Update the current Name Server entries to the following Comcast addresses:


    Note: If needed, the IP address for is The IP address for is

    You have now completed integrating your current domain with your Comcast Business Internet service.

    Only email hosting

    Update your MX records with your DNS provider to the correct Comcast MX records. To find your MX records information:

    1. Sign in to My Account and select Websites from the Manage Services menu.

    2. Select DNS info for domains.

    • The DNS name will display the information for your registered domain.

    • The MX records will start with mq01 / mq02 / mx01.

    • The DNS name will also display the Mail server records of:

    • Autodiscover / SMTP / POP /IMAP

    Note: These Mail server records are entered as “CNAME” records by your DNS provider (Example:      ttl      CNAME      autodiscover-rd.”yourmailserver”)

    Only website hosting

    Update only your A record to the correct Comcast A record. To obtain the correct Comcast A record, please call Comcast Business Customer Support at 1-800-391-3000.

Update your DNS records

Update your DNS records for any of your registered domains.

  1. Step 1:

    Sign in to My Account and select Websites from the Manage Services menu.

  2. Step 2:

    Select DNS info for domains.

  3. Step 3:

    Under Domains, select your registered domain from the dropdown list.

  4. Step 4:

    The DNS Name will display the information for your registered domain.

    You can also try calling your registrar for help with making these required changes.

    Learn more about name servers and DNS.

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