We had this conversation back in January about the reply-bait email, the plain text one from a real person with no links, no design, no ask.
Missed it? Read the first one here.
A few people wrote in asking if it still works. It does, and honestly I think I undersold why.
What I skipped last time
Gmail's own documentation on how domain reputation works is built almost entirely around recipient behavior, not content.
Their words, not mine, the spam rate reflects messages "delivered to engaged recipient's Inbox and then marked as spam by the recipient."
Read between the lines and the flip side is just as true. Engaged behavior, the good kind, carries just as much weight.
Replies sit above all of it because they can't be faked.
An open can happen from image caching.
A click can come from a security scanner crawling your links before a human ever sees the email.
A reply means an actual person read your email and typed words back to you.
There's no bot for that.
Why most brands never get this signal
Most DTC brand domains never generate that signal. Every send is outbound. Announcement, promo, flow, repeat.
To an inbox provider that pattern looks exactly like a company nobody actually wants to hear from, they're just not unsubscribing yet.
And now with Microsoft’s updated “Bulk Complaint Level (BCL)” score, ignoring engagement completely is a terrible idea.
Here’s why most brands miss this:
They ignore them because they don’t generate revenue
They don’t understand how these types of emails help
What to actually send
So you send one email that asks for something small and gives nothing in return. No discount, no early access, nothing transactional attached.
Just a real question from a real person.
"What's one thing you wish we made better this year?"
or
"What would you love ot see form us next?"
That's it.
Why it works better than it should
And it's not just a deliverability trick.
Robert Cialdini's reciprocity principle is old news at this point. Give first and people feel some pull to give back. Almost nobody applies it to something this small.
You're not giving a discount or a freebie. You're giving attention, a real question, the assumption that the person on the other end has something worth hearing.
That's enough to get someone who has never replied to a brand email in their life to type something back.
💡 NOTE: Notify your support inbox before you send this one. It can generate a few hundred replies, sometimes more, and someone needs to be watching for it.
If you want to take this further
If you're looking for every possible edge over the competition, mailmend.io is worth your time. They'll run a free A/B test to see how their software impacts clicks and revenue. Make a meaningful impact, invest in the platform. Doesn't move the needle, no harm, no foul.
I was part of a Gmail beta program back in 2024, and between that and the work we do daily inside client accounts, I put together the real signals Gmail uses to decide Primary versus Promotions.
Full breakdown here: Gmail Primary Tab Secrets.
Reply to this one if you want. I read all of them.
– Anthony