What Actually Makes a Cold Email "Personalised"?

A cold email is personalised when it couldn’t have been sent, unchanged, to a different recipient. A first name and company name dropped into a template doesn’t meet that bar, because the rest of the email still applies to anyone. Real personalisation means the content itself, not just the fields, is specific to one person at one company.

The test

Take any line out of the email and ask: does this sentence only make sense for this recipient, or could it sit unchanged in an email to someone else in the same industry? A merge-tag email fails this test everywhere except the greeting. A genuinely personalised one fails it nowhere in the opening line.

What real personalisation is built from

• A dated, specific fact.Not “you’re growing fast,” but the actual thing: a named hire, a specific launch, a specific round, a specific structural change. See what counts as a real signal.
• Correct, current information.A fact that’s slightly wrong (an old title, a role that’s since changed) reads worse than no fact at all, because it proves the research was stale rather than absent.
• Relevance to what you’re pitching.A true fact that has nothing to do with your product is trivia, not personalisation. The strongest openers connect the fact to the reason you’re writing.

What people mistake for personalisation

• Merge fields. First name, company name, and job title inserted into an otherwise fixed template.
• Generic compliments.“Impressive growth” or “great product” apply to almost any company doing reasonably well.
• Proof of having visited a profile.“I saw your LinkedIn” states an action, not a finding. It’s the bare minimum, not evidence of research.
• Industry-level observations.“Companies in [sector] are struggling with X” describes a category, not the specific business you’re emailing.

Why this distinction actually matters for reply rates

Recipients of cold email are pattern-matching against every other cold email they’ve received, whether they realise it consciously or not. Merge-tag personalisation is the single most common pattern, which means it’s also the fastest one to be recognised and ignored. A fact specific enough that it couldn’t apply to anyone else breaks that pattern-match immediately.

Building the habit

Personalisation done properly is a research problem before it’s a writing problem. See how to research B2B prospects for where the actual fact comes from, and how to turn it into an email once you have it.

The swap test, and why it is the only test

Take the email. Replace the company name with a direct competitor’s. Read it again.

If it still makes sense, it was never personalised. It was addressed. That is the whole test, it takes five seconds, and it is more reliable than any amount of reflection about tone, because it checks the one property that matters: whether the email contains information that could only have come from looking at this particular company.

What counts as specific enough

Being wrong is worse than being vague

There is an asymmetry worth internalising. A vague opener is forgettable. A specific opener that is wrong, such as the wrong funding round, a product they discontinued, a person who left, is actively damaging, because it proves you attempted research and did it badly.

That is why every fact needs a source recorded next to it before it reaches a draft. Under time pressure, “they probably use Salesforce” becomes “you use Salesforce” without anyone deciding to lie. See how to research properly.

Personalisation is not the same as relevance

They are two different claims and an email needs both. Personalisationproves you looked at them. Relevance proves what you sell matters to them.

An email can be impeccably personalised and completely irrelevant: a beautifully specific observation about a company that has no use for your product. That reads as flattery with an agenda, which is worse than a plain pitch. The observation has to lead somewhere: event, then consequence, then the thing you do about the consequence.