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Posts Tagged ‘what is spf records?’

Creating or Updating SPF Records

Sender Policy Framework (SPF) allows you to explicitly define mail servers that can send email from your domain name. Receiving mail servers check this information when they receive email from the domain name, and if the sending server does not match entries in the SPF record, they identify the email as unauthorized.

To Create or Update an SPF Record

  1. Log in to your Account Manager.
  2. In the My Products section, click Domain Manager.
  3. Click the domain name you want to edit.
  4. Click Total DNS Control.
  5. In TXT (Text), click Add New SPF Record or click  for an existing record you want to edit.
  6. From the This domain sends mail through list, select one of the following options:
    • Us only — Sends email only through us.
    • Us and an ISP — Sends email using us and your ISP.
    • An ISP or other provider — Sends email using your ISP or another mail provider.
    • No email is sent from this domain — Does not send email using this domain name.
  7. On the Inbound tab, select All Inbound Servers May Send Mail to allow incoming email sent from any mail servers or do one or both of the following:
    • Select individual servers — Specify the allowed incoming mail servers.
    • Enter Additional MX Addresses — Enter the allowed incoming MX addresses (mail servers).
  8. On the Outbound tab, if the IP addresses listed in your A records for the domain name are also outbound mail servers, select All Addresses in A Records. Optionally, you can enter additional A Records for outbound mail servers.
  9. On the PTR tab, select Include PTR to allow servers based on your domain name to send email. Optionally, you can enter additional PTR addresses.

    NOTE: A PTR refers to reverse DNS records. In an SPF record, including the PTR tells the receiving SMTP server to complete a reverse DNS lookup on the sending server’s IP address, and then expect a match in the response. If you enter additional PTR addresses, responses ending in those domain names are considered valid matches.

  10. On the Outsourced tab, if mail from your domain name is sent through an ISP or other third party server, enter the third party domain names you are using.
  11. (Optional) To prevent the SPF Record from automatically validating servers not specifically listed, select Exclude all hosts not specified here.
  12. Click OK.
  13. On the SPF Wizard Step 3 screen, click OK to save the SPF record string as a TXT record.

    NOTE: Clicking the Edit button takes you to the first screen in the record.