Email Security Guides

Learn how to configure email authentication, improve deliverability, and protect your domain.

• DMARC Setup Guide

  Configure DMARC to protect your domain from email spoofing and phishing.

• SPF Record Guide

  Create and optimize your SPF record for reliable email authentication.

• DKIM Setup Guide

  Set up DKIM signing to verify your emails haven't been tampered with.

• Email Deliverability Checklist

  Complete checklist to ensure your emails reach the inbox.

• Blacklist Removal Guide

  Steps to check, delist, and prevent future email blacklisting.

• MTA-STS Setup Guide

  Set up MTA-STS to prevent TLS downgrade attacks on your email.

• DANE/TLSA Setup Guide

  Secure email with DNS-based certificate authentication using DNSSEC and TLSA records.

• SPF Too Many Lookups

  Fix the SPF 10-lookup limit and flatten your SPF record.