Email Authentication
Email authentication is a set of protocols and techniques used to verify the legitimacy of email senders and prevent email spoofing, phishing, and spam. It involves implementing standards like SPF, DKIM, and DMARC to authenticate email domains and ensure messages are from authorized sources. This helps protect email recipients and maintain the integrity of email communications.
Developers should learn email authentication when building or maintaining email systems, web applications that send transactional emails, or any service involving email communication to prevent domain impersonation and improve deliverability. It's crucial for security compliance, reducing spam complaints, and ensuring emails reach inboxes rather than being marked as junk.