A practical course on the three protocols that make domain spoofing harder: Sender Policy Framework (SPF), which authorises servers against the envelope sender; DomainKeys Identified Mail (DKIM), which cryptographically proves message integrity and origin; and Domain-based Message Authentication, Reporting and Conformance (DMARC), which aligns both with the visible from address and gives a domain owner an enforceable, phased policy. You will work through common configuration mistakes, the phased DMARC rollout, the look-alike domain gap none of these protocols close, and how to measure real authentication coverage across an organisation's full sending footprint using clearly labelled hypothetical data.
Nothing. Every course, exam, and certificate on the catalog is free — including retakes. All you need is a free Safeguard account.
None. The flagship course, Safeguard Certified Practitioner, is a beginner-level course — basic familiarity with how software is built helps, but every exam question is answerable from the lessons themselves.
You can retake it after a 24-hour cooldown, as many times as you need. Retakes are free, and each attempt draws a fresh random set of questions.
The Safeguard Certified Practitioner credential is valid for 24 months from issue. The expiry date is printed on the certificate and shown live on its public verification page. Renewing means passing the current exam again.
