Email Authentication Standards

Email authentication standards are rules that govern how emails are created, sent, and received. These rules ensure that the messages we send and receive are secure and trustworthy. These standards can be used to protect against spoofing, malware, phishing, and other cyber threats.

Types of Email Authentication Standards

SPF to verify your sender’s IP address and evaluate their authority over your domain

DKIM to ensure that the contents of your email are not altered during the transfer

DMARC to instruct email receivers on how to handle bad email 

MTA-STS to enforce email transport layer encryption for all SMTP emails 

BIMI to display unique brand logos on company emails in the receivers’ inbox 

Email authentication standards make email communications safer by mitigating a variety of email-based attack vectors like Phishing, Spoofing, Ransomware, etc. We will learn about these in detail in the next chapters!