SPF (Sender Policy Framework) is a method to help stop email spoofing and works together with other tools like DKIM and DMARC. SPF checks whether an email was sent from a mail server approved by the sender’s domain.
What SPF means for everyday users (email recipients)
- SPF is a behind-the-scenes check that verifies the sender is using an authorized mail server.
- Even if an email passes SPF (shows “SPF=pass”), it doesn’t guarantee the email is safe or not a scam.
- Don’t click links or open attachments in suspicious emails—especially if they ask you to log in, verify your info, or sign a document. Instead, go directly to the company’s official website or app.
For businesses and IT admins (protecting your sending domain)
- SPF is part of your domain’s email security and defines which mail servers are allowed to send email for your domain.
- Make sure your DNS has a correct SPF record that includes all your authorized senders (e.g., your email provider, marketing platform, help desk).
- Use SPF together with DKIM (email signing) and DMARC (policy for handling unauthenticated emails). Together, they provide stronger protection against spoofing and phishing.
- With proper setup, SPF helps mail providers flag suspicious messages and helps protect your company’s domain reputation.