Sending Reputation and Sender Score: What Are They and Why Are They Important?
Sender reputation determines whether your emails end up in the spam folder or in someone's inbox. That makes it pretty important. Read about the sign...
Sender Score
Sender Score is a 0 to 100 rating of your sending reputation. A higher score means inbox providers are more likely to trust your emails and keep them out of spam.
Sender Score is a simple way to see how mailbox providers view your sending. It is a number from 0 to 100 tied to your IP address or sending setup. The score comes from how people react to your emails and how clean your sending habits are. A higher score means you look like a safe, consistent sender.
This score matters because it lines up closely with inbox placement. When the number drops, more of your emails land in spam or get blocked before people see them. A strong score helps your campaigns, receipts, and product emails reach the inbox without extra work. Teams often watch Sender Score over time as one signal in their deliverability health check.
If your Sender Score starts to fall, slow down and tighten your sending. Focus on your most engaged subscribers first and stop mailing people who have not opened in a long time. Fix any bounce or spam complaint issues and make sure people can unsubscribe easily. Once your core metrics improve, you can raise volume again in small, steady steps.
Related Terms
Reputation(Sender Reputation)
Sender reputation is the trust score mailbox providers give your emails based on how you send and how people react. It helps decide if your messages land in the inbox or get pushed to spam.
Learn more →Email Engagement Score(Engagement Score)
A simple score that shows how active a subscriber is with your emails, based on actions like opens, clicks, replies, and purchases. It helps you quickly see who is engaged and who might be slipping away.
Learn more →Spam Trap(Honeypot Address)
A spam trap is an email address used by inbox providers to spot bad or careless senders. Hitting one damages your sender reputation and makes it more likely your emails go to spam.
Learn more →Domain Reputation
How trusted your sending domain is by email providers like Gmail and Outlook. A strong domain reputation keeps your emails in the inbox instead of spam.
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