spfquery

Query Sender Policy Framework records to validate e-mail senders.

TLDR

Check if an IP address is allowed to send an e-mail from the specified e-mail address

>_ spfquery -ip [8.8.8.8] -sender [sender@example.com]
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Turn on debugging output

>_ spfquery -ip [8.8.8.8] -sender [sender@example.com] --debug
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