How to Set Up SPF for FastMail?

The Sender Policy Framework (SPF) is an email authentication system that detects forged sender addresses while the email is being delivered. SPF, on the other hand, is confined to detecting a forged sender claim in the email’s envelope, which is used when it bounces.

To configure SPF for FastMail, follow these steps:

  • Log in to your DNS management console.
  • Go to DNS template.
  • You will need to add or modify the SPF record as required. 
  • If you don’t have an existing SPF record, the following record will need to be added to your DNS: yourdomain.com    TXT    v=spf1 include:spf.messagingengine.com -all
  • If you have an existing SPF record, you will need to include FastMail as follows:

 v=spf1 mx include:spf.messagingengine.com -all

  • Publish the records and click on Save. 
  • Wait for 24-48 hours for the changes to take effect, and after that, check your records using our free SPF lookup tool.
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