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Related articles:
MX record
Bounce message
Simple Mail Transfer Protocol
Domain Name System
List of DNS record types
E-mail spam
Key terms: spf tt mail dns sender domain mx fail address rfc smtp check reject helo receivers mechanism forwarding forged specify spf fail ietf mta queries spammers forgery use spf validates sender policy framework header implementations mx record txt record spf record spf does redirect cannot work modifiers error message smtp error dns record potential junk checking spf mailing list domain name system authentication bounce message spf information original sender allowed to send mail transfer agent Search external links cited by footnotes on Wikipedia page Sender Policy Framework: |
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