Authentication-Results Header

The Authentication-Results header is a tool used in email communication to show whether an email has been verified for authenticity. It provides information about checks like DKIM, SPF, and DMARC, which confirm if the sender is authorized and the message hasn’t been tampered with. This header helps email systems and recipients identify legitimate messages and reduce phishing or spam. Essentially, it’s a report that summarizes the email’s verification status, increasing trust and security in email exchanges.