Know your sender reputation.
Know how to improve it.

Return Path Sender Score is a comprehensive reputation measurement covering email senders worldwide.

Enter an IP address or domain

Get free access to the full Sender Score reports for an IP or Domain by registering for an account.

Featured Resources

Research

2018 Deliverability Benchmark

Learn More

Interactive

The Great Email Escape

Learn More

Research

The Hidden Metrics of Email Deliverability

Learn More

We Know Email

We’re the experts in deliverability and driving results for your email marketing.

Request a Demo

Latest Email Optimization Posts



3 Triggered Emails to Improve Brand Loyalty

Read More



Meet EmailDNA—The Evolution of Email

Read More



2 Simple Ways to Increase Email Subscriber Engagement

Read More