RFC Errata
RFC 7208, "Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1", April 2014
Note: This RFC has been updated by RFC 7372, RFC 8553, RFC 8616
Source of RFC: spfbis (app)See Also: RFC 7208 w/ inline errata
Errata ID: 6721
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Ale Vesely
Date Reported: 2021-10-25
Verifier Name: Murray Kucherawy
Date Verified: 2021-11-09
Section 8.4 says:
550 5.7.1 SPF MAIL FROM check failed: 550 5.7.1 The domain example.com explains: 550 5.7.1 Please see http://www.example.com/mailpolicy.html
It should say:
550-5.7.1 SPF MAIL FROM check failed: 550-5.7.1 The domain example.com explains: 550 5.7.1 Please see http://www.example.com/mailpolicy.html
Notes:
In addition, RFC 7208 does not give an example of rejection based on the HELO argument.