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.

What is Return Path Sender Score?

Your Sender Score is like a bank running your credit score to gauge your credit history but measures the health of your email program. Sender Score is a number between 0 and 100 that identifies your sender reputation and shows you how mailbox providers view your IP address.

Mailbox providers take a lot of metrics into consideration to determine your sender reputation including spam complaints, mailing to unknown users, industry blacklists, and more.

What is Sender Score?

Take Action

Once you know your Sender Score, you will have actionable insight on how to improve your reputation and inbox placement in partnership with Return Path’s deliverability solutions.

What Does My Sender Score Mean?

Whether you are on the high or low end of the Sender Score spectrum, there’s always room for improvement.

Sender Score < 70

You need to repair your sender reputation. Download the Hidden Metrics of Email Deliverability to understand the engagement-based metrics mailbox providers are using determine which senders get in the inbox.

Sender Score > 70

Continue following industry best practices and optimizing your email program. Download the Email Marketing Lookbook to learn how to build and run an effective email program.

Sender Score > 80

You have a great sender reputation, and you may qualify for our Certification program, the industry-leading whitelist. Learn more about the Return Path Certification program.

Featured Resources


The Hidden Metrics of Email Deliverability

Learn More


2018 Email Marketing Lookbook

Learn More


2017 Deliverability Benchmark Report

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

Surprising Facts About the Emails You’re Sending: Q&A and Recording Link

Read More

Finding Email Inspiration

Read More

Is Your Email Program Complete? [New Webinar]

Read More

Stay up to date

Enter your email address below to subscribe to our mailing list.