Sender Policy Framework (SPF)
Sender Policy Framework (SPF)
- April 20, 2021
- Posted by: Nicola Selenu

TXT records on your domain that authorize certain servers to send mail using your domain name. It was published as a Experimental document by the IETF as RFC4408 in 2006, and updated as a Standards Track document as RFC7208 in 2014. More information is available from OpenSPF.org or Wikipedia.
Author:Nicola Selenu
Email Service Providers Handbook
The most comprehensive “Handbook of Email Service Providers“!
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All SpamAssassin rules in one place, EXPLAINED!
SMTP COMMANDS
& REPLY CODES
All SMTP/ESMTP commands and reply codes in one place, EXPLAINED!
Free DNS Tool
Check the DNS records of your domain with our free DNS tool.
Deliverability Glossary
The most comprehensive Email Deliverability and Marketing Glossary!
Sender Policy Framework (SPF)
TXT records on your domain that authorize certain servers to send mail using your domain name. It was published as a Experimental document by the IETF as RFC4408 in 2006, and updated as a Standards Track document as RFC7208 in 2014. More information is available from OpenSPF.org or Wikipedia.
Author:Nicola Selenu
Email Service Providers Handbook
The most comprehensive “Handbook of Email Service Providers“!
SPAMASSASSIN RULES
All SpamAssassin rules in one place, EXPLAINED!
SMTP COMMANDS
& REPLY CODES
All SMTP/ESMTP commands and reply codes in one place, EXPLAINED!
Free DNS Tool
Check the DNS records of your domain with our free DNS tool.
Deliverability Glossary
The most comprehensive Email Deliverability and Marketing Glossary!