Email Infrastructure

Learn about email authentication, delivery, and security protocols.

Articles

What Is an SPF Record?Learn what SPF records are, how they prevent email spoofing, and how to configure them correctly.

What Is DKIM?Understand DKIM, how it signs emails cryptographically, and why it is essential for email authentication.

What Is DMARC?Learn how DMARC combines SPF and DKIM to protect your domain from email spoofing and phishing attacks.

What Is SMTP?Learn how SMTP works, the role it plays in email delivery, and common SMTP issues that affect reliability.

What Is Email Authentication?A guide to email authentication protocols including SPF, DKIM, and DMARC, and how they work together.