TLDR
Enter a command. For example: pwgen, pageres, popd, bfg, dvc config.

spfquery

 
Query Sender Policy Framework records to validate e-mail senders. More information: https://www.libspf2.org/.
 
  • 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}}
     
  • Turn on debugging output:
     
    spfquery -ip {{8.8.8.8}} -sender {{sender@example.com}} --debug

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