What are email engagement signals?

Engagement signals are the actions people take (or don't take) with your emails. Opens, clicks, replies, deletes, spam reports, rescues from spam. Every action gets tracked, and mailbox providers use those signals to decide whether future emails from you land in the inbox or get filtered.

Think of it this way: when someone consistently opens and clicks your emails, Gmail, Outlook, and Yahoo notice. That's a green flag. When someone deletes your email without opening it three times in a row, that's a red flag. Do that across enough subscribers, and you've got a reputation problem.

Engagement signals fall into two categories: positive (opens, clicks, replies, forwarding, moving to primary inbox) and negative (deletes without opening, spam complaints, unsubscribes, ignoring). Positive signals tell mailbox providers you're sending stuff people want. Negative signals tell them you're not.

Here's the hard truth: engagement signals matter more than authentication. You can have perfect SPF, DKIM, and DMARC and still land in spam if nobody engages with your emails. Authentication proves you're you. Engagement proves you're worth reading.

The biggest mistake senders make: ignoring non-openers. If someone hasn't opened your last 10 emails, they're not going to open the 11th. Mailbox providers know this, and they'll start filtering you to spam for that subscriber (and eventually for others if the pattern spreads). Want better deliverability? Stop emailing people who stopped caring.

Not sure where your engagement stands? Check your ESP's analytics for open rate, click rate, and unsubscribe rate. Industry average open rates hover around 20-25%, but context matters. A transactional email with a 60% open rate is normal. A newsletter with a 10% open rate is a problem. If you're stuck interpreting your numbers, ask us (it's free, no pitch).