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Sender Policy Framework


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Record wizard

  • Use our setup wizard to help you create an SPF record for your domain.

Form based record testers

E-mail based record testers

  • The SPF project provides an SPF verification tool. Send an email to spf-test@openspf.org and you will receive results via an SMTP time rejection. You will get results either in your MTA mail logs or via however your MTA reports errors to message senders (e.g. a bounce message). This is done to avoid the risk of backscatter from the tester. This test tests both Mail From and HELO and provides results for both. It uses the Python SPF (pySPF) library. This library is fully RFC 4408 compliant and passes all the tests in the SPF Test Suite. MTA services for this test are provided by Controlled Mail.
  • Port25.com provides a tool to test whether your SPF record is working. Send an email to check-auth@verifier.port25.com and you will receive a reply containing the results of the SPF check.
  • The ESPC also provides an SPF / Sender ID verification tool