What is a SPF record for DNS?

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  1. #permitted
  2. #messages
  3. #domain
  4. #service
  5. #policy
  6. #detect
  7. #sender
  8. #identifies
  9. #forged
  10. #spammers
  11. #prevent
  12. #addresses
  13. #record
  14. #servers
  15. #sending
  16. #email
  17. #behalf
  18. #which
  19. #purpose
  20. #framework