Sample Sender Policy Framework (SPF) Lookup

E-mail address or Domain:
  Example: or
IP Address e-mail is Coming From:

The Sender Policy Framework (SPF) is an open standard specifying a technical method to prevent sender address forgery. More precisely, the current version of SPF ? called SPFv1 or SPF Classic ? protects the envelope sender address, which is used for the delivery of messages. See the box on the right for a quick explanation of the different types of sender addresses in e-mails. (There are other solutions that protect the header sender address or that do not care at all about who sent the message, only who originally wrote it.) Read more here...

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