You can have the perfect ICP, killer copy, and test your subject lines to death. But if your emails don't hit the inbox, none of it matters.
This is where most teams tend to fall short. They either skip email warm-up entirely or use some tool that pretends to work, but doesn't simulate real human behavior. Then they wonder why open rates crash or why their domain gets flagged.
If you're serious about outbound, warming up your email is non-negotiable. It's the first step, not the afterthought.
Email warm-up means gradually building your domain and sender reputation by acting like a real human, rather than a bulk sender.
That includes:
If you blast 100 cold emails from a new inbox, spam filters will notice, and you won't recover quickly.
Email providers don't care what you're trying to do. They care how you behave. Warm-up is your proof that you're legit.
No warm-up? Expect problems.
Even if your content is flawless, a cold or misused inbox gets flagged, filtered, and ignored.
And if you're using one domain for both outreach and internal communication? You're risking everything.
Deliverability doesn't fail loudly—it erodes slowly. A few missed inboxes, a couple of soft bounces... suddenly, nothing lands. And your team's performance takes the hit.
Here's where teams often go wrong:
If you're going manual, use this ramp-up timeline:
The key? Act human and stay consistent. Don't jump from 10 to 100. And once you're warmed up, keep it going quietly in the background.
You could DIY a warm-up. You could pay for another third-party tool.
Or you could use Prospectory, where warm-up is built in.
We handle:
All without another login or daily babysitting.
Now. Before your campaign goes live.
Warm up takes time—usually 3–4 weeks. So even if you're just planning an outbound push, let those inboxes build trust quietly in the background.
Even an old inbox can go cold. If it hasn't been active for over a month, treat it as if it were new.
Even a perfect warm-up won't save you from bad email practices. Watch out for:
You don't need to be a deliverability expert, but you do need visibility into your email deliverability. Prospectory gives you that too.
Treating email warm-up like an optional step is a fast track to the spam folder.
Get it right, and everything else, your copy, offer, and targeting, finally works as intended. Get it wrong, and no one even sees your message.
Prospectory makes the process automatic, continuous, and invisible. So your cold emails reach real people. And get real results.
