Return Path provides a variety of services including:
Email Certification: Ensures that emails from certified senders are given preferential treatment by ISPs. Inbox Monitoring: Tracks where emails are landing and helps identify issues that may affect deliverability. Sender Score: A score that reflects the sender's reputation, based on factors like complaint rates, spam traps, and unknown users. Email Optimization: Provides tips and best practices for improving email content, structure, and design.