Email authentication handbook
It’s surprisingly easy to fake an email.
When the Internet and email were first created, they were only accessible to a handful of people, so there was no room for impersonation. They didn’t know how popular and central to business and transactions email would become, so they didn’t include any way to verify an email sender’s identity; email headers, including the “From:” and “Reply-to:” fields, are therefore now remarkably easy to fake.
Enter email authentication, which collectively refers to the open Internet standards that validate email senders:
- SPF (Sender Policy Framework)
- DKIM (DomainKeys Identified Mail)
- DMARC (Domain-based Message Authentication, Reporting, and Conformance)
- BIMI (Brand Indicators for Message Identification)
- ARC (Authenticated Received Chain)
Download this eBook to learn how these five standards work, their limitations, and what it takes to implement them at your business.