Return Path Help Center
- Understanding SmartSeeds (video)
- FAQ: The Universal Feedback Loop (uFBL)
- What is Microsoft's anti-spoofing protection change and how does it impact me?
- Why is my IP address listed on the Return Path Blocklist and what can I do about it?
- Return Path Blocklist (RPBL) FAQ
- Certification Requirements (PDF)
- Best practices for email marketers responding to COVID-19