Articles · Book More Meetings

Why Your Cold Email Campaign Isn't Working (And How To Diagnose It)

By Mark Colgan ·

You’ve launched a cold email campaign, the results are poor and your instinct is to rewrite the whole thing.

Don’t. Most people panic and change everything at once, which means they never find out what was actually wrong.

Work through it like a diagnostic tree instead. What you’re seeing tells you where the problem is.

First, have you sent enough?

Run about 300 people through the sequence before you draw any conclusions. Judging a campaign on 40 sends is reacting to noise.

Also remember that most replies come from the first two emails. If those two aren’t your best material, fix that before anything else.

No opens: it’s deliverability

If almost nobody is opening, your emails aren’t landing in inboxes.

No amount of clever copy fixes that, because nobody is seeing the copy. Sort out your sending infrastructure before you touch a single word.

Opens but no replies: it’s the message

People are seeing it, so deliverability is fine. They’re just not moved to respond. That leaves two possibilities:

  • The copy isn’t resonating. It doesn’t sound like their problem in their words. Voice of customer research helps here.
  • Right companies, wrong people. You’ve found businesses that fit, but you’re emailing someone who doesn’t own the problem.

Replies, but neutral or negative: it’s the angle or the audience

Your message is getting through and it’s hitting the wrong nerve. There are only two variables to look at:

  • Right people, wrong angle.
  • Right angle, wrong people.

Change one. Not both. If you change both you won’t know which one made the difference.

“Maybe the framework is just saturated”

I get asked this a lot. Are the cold email frameworks everyone teaches worn out?

Specific tactics do get saturated. When a big platform publishes “these subject lines work” and millions of people copy them, those subject lines stop working. “Quick question” is the classic example.

The fundamentals behind the frameworks are timeless: short, relevant, focused on the person and their problem.

So the question to ask is “is this message relevant?”, not “is this framework overused?”. Most campaigns fail for one of three reasons:

  1. The targeting is off.
  2. The language doesn’t match the prospect’s world.
  3. There’s fake personalisation, and it’s obvious.

Fake personalisation does more damage than a familiar structure. A prospect can spot a framework in their inbox, and if what’s inside it is relevant to them, it still works.

The quality bar in outbound is low. Well-executed basics still beat clever tricks.

The quick version

What you’re seeing What it means What to fix
No opens Deliverability Your sending setup
Opens, no replies Message Copy, or who you’re emailing at the company
Neutral or negative replies Angle or audience One of the two, not both

What to do next

Look at your last campaign and find your row in that table. Fix that one thing, send to another 300 people and compare.

If you want numbers to aim for, here’s how I get 13% to 31% reply rates, and seven CTAs that lift replies.

Frequently asked questions

Why is my cold email campaign getting no replies?
If emails are being opened but nobody replies, your deliverability is fine and the message is the problem. Either the copy isn't resonating, or you're reaching the right companies but the wrong people inside them.
How many people should I email before judging a campaign?
Run about 300 people through the sequence before drawing conclusions. Fewer than that and you're reacting to noise.
Do cold email frameworks stop working when everyone uses them?
Specific tactics get saturated, like a subject line everyone copies. The fundamentals don't: short, relevant and focused on the person and their problem. Most campaigns fail on relevance, not on the framework.
Which emails in a sequence get the most replies?
Most replies come from the first two emails, so put your best material there.

Want help applying this to your agency?

Monthly 1-2-1 mentoring where you bring the agenda, questions and ideas so we can solve them together. It starts with a free mentoring sprint.