Posts tagged: rfc-7208
Google Workspace SPF Record: What Docs Don't Tell You
The exact Google Workspace SPF record to publish, third-party sender combos, the DNS lookup math, and ~all vs -all under RFC 7208.
SPF Record Syntax Guide: RFC 7208 Rules & Macros
Every SPF record syntax element in one place — mechanisms, qualifiers, modifiers, and macros — with RFC 7208 section cites and real record examples.