StreamScore is SocketLabs’ email performance monitoring and reporting tool that analyzes email across various first and third-party data points to indicate the overall health of an email stream (or streams).  Your score is based on a scale of 0 (worst) to 100 (best) and serves as a representation of how mailbox providers (i.e. Gmail, Yahoo!, Hotmail, etc.) are likely to judge your email.

Scores are calculated daily and are based on a rolling 15-day history of messages. A 30-day history of the score for each server is displayed in your Control Panel.

StreamScore Overview

There are two versions of StreamScore reporting depending on your plan level:

StreamScoreLite is found in our Developer and Core plans. This version features a non-interactive score history graph (meaning it does not provide hover-over scoring results) and a single, aggregate score with no further detail.


StreamScorePro is found in our Pro and Enterprise plans. This version features everything that Lite has, but also an interactive score history graph, scores for each of the four scoring components (find more detail on scoring components below), the ability to get a StreamScore for each domain you send on or on behalf of, and best practice guidance.

StreamScoreProsending domains StreamScore

StreamScore Meanings

StreamScore uses three colors to indicate the performance of your email:

Green: There isn’t much that needs attention within your email program. You can check your individual component scores* to see which areas are doing better or worse than others.

Yellow: There is room for improvement. This doesn’t necessarily mean all of your StreamScore components are in need of attention. Check each component score* to see which ones need improvement.

Red: Attention is needed in some or all areas of your email program. Check each component score* to see where you should start making immediate improvements.

*See StreamScore components below – component scores are only available in StreamScorePro.

Factors That Impact or Change StreamScore

The StreamScore aggregate score is calculated via an algorithm that collects, analyzes, and weighs various first and third-party data points to provide a single score. To calculate your StreamScore aggregate score, the algorithm first calculates four component scores: 

Audience Score - The Audience Score analyzes the quality of recipient email addresses used. This score is a result of the practices used to collect recipient email addresses and the level of maintenance performed on existing recipient lists/addresses.

Engagement Score - The Engagement Score analyzes how recipients are interacting with delivered email. It mirrors the engagement-based decisions used in anti-spam filtering technology to identify potential impacts to inbox placement. Engagement tracking needs to be configured for this component.

Reputation Score - The Reputation Score analyzes feedback received directly from major mailbox providers about how they are judging email from the sender. This scoring component indicates your ability to successfully reach the inbox based on your reputation.

Security - The Security Check analyzes your account configuration and the use of no, partial, or full authentication.

Need Additional Help?

If you are looking for a more hands-on deliverability consulting experience with one of our deliverability experts, you can learn more about our consulting services here.