Every time someone opens your email, clicks a link, or deletes it without a second look, that action gets counted. Add it all up across your whole list, and it quietly decides one thing: whether your next email lands in the inbox or the spam folder.

So what are engagement signals? Simple. They're the actions people take, or don't take, with your emails. Opens. Clicks. Replies. Deletes. Spam reports. Rescues from the spam folder. Every one of those gets tracked, and the big inboxes use them to judge you.

Think of them as two piles. When someone at deepcurrent dot io keeps opening and clicking your emails, Gmail, Outlook, and Yahoo notice. That's a green flag. When someone ignores you three sends in a row and swipes you straight to the trash, that's a red flag. Do that across enough subscribers and you've got a reputation problem.

Every signal falls into one of those two buckets. Positive signals, opens, clicks, replies, forwards, moving you to the main inbox, tell the mailbox provider you're sending stuff people actually want. Negative signals, deleting without opening, spam complaints, unsubscribes, plain old ignoring, tell them the opposite. We go deep on each in their own videos, linked below.

Here's the part that catches senders off guard. Engagement can matter more than your authentication. You can have flawless SPF, DKIM, and DMARC and still land in spam if nobody engages. Authentication proves you're really you. Engagement proves you're worth reading. The inbox cares about both, but people voting with their behavior carries serious weight.

If that reframed how you think about the inbox, subscribe, we're working through every email question one at a time.

The biggest miss? Mailing people who checked out long ago. If a subscriber hasn't opened your last ten emails, they're probably not opening the eleventh. Keep hammering them and the inbox learns your mail gets ignored, first for them, then it can spread to everyone. The fix is almost rude in how simple it is: stop emailing people who stopped caring. That's a sunset policy, linked below.

So engagement signals are just the running tally of how people treat your mail. Positive on one side, negative on the other, and the inbox reads the score to decide where you land. Want to know where you stand? Peek at your open rate, click rate, and unsubscribe rate in your ESP.

One honest caveat on open rates: they've gotten less reliable since Apple started pre-loading images, so treat opens as a soft hint, not gospel. More on that in the measuring video.

Next up, the positive signals, and which one the inbox trusts most. And if a 15 percent open rate has you unsure whether that's good or bad, our SOS hotline is free, no pitch.

Email engagement signals are the actions people take with your emails, opens, clicks, replies, deletes, and spam reports, and mailbox providers like Gmail, Outlook, and Yahoo use them to decide where your next email lands. This video breaks the signals into two piles (positive vs negative), explains why engagement can outweigh even perfect SPF, DKIM, and DMARC, and covers the single biggest mistake senders make: refusing to stop emailing people who quietly checked out.

Heads up on open rates: since Apple Mail Privacy Protection pre-loads images, an "open" can fire without a real read, so treat opens as a soft signal.

0:00 Every action is counted

0:20 The plain answer

0:45 Green flags vs red flags

1:20 Positive vs negative

1:50 Why engagement can outweigh authentication

2:35 The mistake to avoid

3:00 Takeaway + the open-rate caveat

Concepts in this video: engagement signals, positive signals, negative signals, sender reputation, sunset policy.

Next: Positive engagement signals, replies beat opens → [link 002.004.002]

Full written guide → reviewmyemails.com/emailalmanac/metrics-and-engagement/engagement-signals/what-are-email-engagement-signals

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