This deliverability audit suits any client of any provider and will include a comprehensive report on the state of the ESP. The introduction provides an overview of the five major key factors that drastically affect delivery and audit criteria:
- Business Policies – focuses on CAN-SPAM compliance, and permission levels as it relates to best practices.
- Infrastructure – examines IP address structure, volume throttling, RFC compliance, and authentication.
- Content & Design – examines website and email content consistency, email client rendering, and spam assassin testing.
- Reputation – various public and private blacklists, and web reputation.
- Data Management – data collection and hygiene, feedback loop, unsubscribe management, and bounce management