{"id":570,"date":"2026-05-15T13:36:12","date_gmt":"2026-05-15T13:36:12","guid":{"rendered":"https:\/\/inboxwarm.ai\/blog\/?p=570"},"modified":"2026-05-15T15:08:07","modified_gmt":"2026-05-15T15:08:07","slug":"sender-score-guide","status":"publish","type":"post","link":"https:\/\/inboxwarm.ai\/blog\/sender-score-guide\/","title":{"rendered":"What Is a Sender Score: How It Affects Your Emails and How to Improve It?"},"content":{"rendered":"
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\n TL;DR
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\n A sender score is a numerical rating from 0 to 100 that measures the reputation of an email sending IP address or domain. The higher your score, the more likely your emails are to reach the inbox. Scores above 70 are considered good. Scores below 50 indicate problems that will cause significant spam folder placement. The score is calculated by weighing your spam complaint rate, bounce rate, inbox placement history, spam trap hits, and sending volume consistency. You improve it by warming up your domain, reducing complaints, cleaning your list, and maintaining consistent sending patterns.\n <\/p>\n<\/div>\n

Most email senders do not know their sender score exists until something goes wrong. Open rates fall off a cliff. A client calls to ask why their campaign is in spam. Replies stop coming in on a sequence that was working fine last month.<\/p>\n

The investigation almost always leads to the same place: a damaged sending reputation that built up over weeks or months while nobody was watching.<\/p>\n

This guide covers everything you need to know about sender score: what it actually measures, how it is calculated, what the different score ranges mean for your deliverability, the specific actions that raise and lower it, and the systematic process for improving a damaged score.<\/p>\n

It also covers what the sender score is not, because several common misconceptions cause people to fix the wrong things.<\/p>\n

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What this guide covers:<\/div>\n