Sender Audit Blog

Guides, best practices and news about email deliverability, DNS authentication and domain security.

Deliverability Email Reputation

Email Deliverability: The Ultimate Guide to Reaching the Inbox

Understand the factors that influence your email deliverability: IP reputation, DNS authentication, content, engagement and monitoring.

Simon Bressier · · 3 min
DKIM Email Security

DKIM: Sign Your Emails to Prove Their Authenticity

Complete guide to DKIM (DomainKeys Identified Mail): how cryptographic signatures work, DNS setup, key rotation and troubleshooting.

Simon Bressier · · 4 min
SPF Email DNS

SPF: The Complete Guide to Authorizing Your Sending Servers

Everything you need to know about SPF (Sender Policy Framework): syntax, mechanisms, the 10 DNS lookup limit, and step-by-step configuration.

Simon Bressier · · 3 min