How do deletions without opens affect sender score?
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Deletes without opens are a quiet drag, not a hard punch. The signal is real but it's the kind that builds up over weeks, not the kind that knocks you out of the inbox in one campaign.
Why it matters less than complaints, more than nothing
A spam complaint is a recipient telling the provider "this shouldn't have arrived." A delete without open is a recipient telling the provider "I don't want to look at this." It's a softer message, but providers still hear it.
If 10 to 15 percent of a list deletes without opening on a single send, that's normal life. If 50 to 60 percent of your list does it for several sends in a row, you're training Gmail and Outlook to start filtering you toward Promotions or Junk. They don't need a complaint to act. The non-engagement pattern is enough.
How it ranks against other signals
- Spam complaints: the most expensive single action. Anything above 0.1 percent at Gmail is a problem.
- Hard bounces: hurt fast and hurt visibly. Above 2 percent and providers throttle.
- Deletes without opens: slow drag. No clean threshold, but watch for sustained patterns above 50 percent on engaged segments.
- Ignoring entirely: similar weight to deletes-without-open. Both say "not wanted."
What to do
If your delete-without-open rate is climbing, the fix isn't to send harder. It's to send to fewer people. Cut subscribers who haven't engaged in 90 to 180 days, or move them to a "we miss you" cadence of one email a quarter. Engagement on the remaining list almost always rises.
If you want to see whether your specific domain is showing this pattern at the providers that matter, Review My Emails can pull the picture before you start cutting.
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