Email Authentication
What is SPF Email Authentication?
SPF email authentication lets domain owners publish which servers may send mail using their domain, helping receivers detect spoofing.
Beginner
6 min read
Email Authentication
SPF alongside DKIM, DMARC, and related standards.
Email Authentication
DMARC and SPF
DMARC builds on SPF and DKIM by defining alignment rules and reporting what receivers see when mail claims your domain.
Intermediate
8 min read
Email Authentication
DKIM and SPF
DKIM cryptographically signs messages while SPF authorizes sending IPs; together they strengthen authentication under DMARC.
Intermediate
7 min read