RFC Errata
RFC 8601, "Message Header Field for Indicating Message Authentication Status", May 2019
Source of RFC: dmarc (art)
Errata ID: 6027
Status: Reported
Type: Technical
Publication Format(s) : TEXT
Reported By: John Levine
Date Reported: 2020-03-22
Section Appendix B says:
spf=pass smtp.mailfrom=example.net
It should say:
spf=pass smtp.mailfrom=sender@example.net
Notes:
This error appears three places in Appendix B. smtp.mailfrom takes a mailbox, not a domain name.
The example in section 2.7.4 at the bottom of page 21 is OK.