Cold Email Copy That Gets Replies: What We've Learned From Real Campaigns

Infrastructure gets your email to the inbox. Copy decides whether anyone answers. And the two are linked: emails people ignore or report as spam slowly damage the domain that sent them.

Here's what tends to work.

Keep it short

Most of our best-performing first emails are 50 to 90 words. That's four or five short lines. People read cold email on their phones, between other things. If it needs scrolling, most won't.

A simple structure

Why them. One line that shows you looked. "Saw you opened a second branch in Coimbatore last month."
The problem. One line about something they likely deal with. "Usually that's when billing and stock between branches starts drifting."
What you do. One line, plain words. "We build POS systems that keep both stores on one live stock count."
One question. "Is that something you're sorting out already?"

No paragraph about your company history. No list of ten services.

Subject lines

Write them like an internal email:

second branch
question about billing
stock between stores

Avoid all caps, exclamation marks, emojis and anything that sounds like an ad. Shorter is usually better: two to four words.

Personalisation that's real

Hi {first_name} isn't personalisation. A line that could only be written to this company is. It doesn't have to be long. A recent hire, a new product, a location, a job post. Ten minutes of research per account beats a thousand generic sends.

If you can't personalise every email, personalise by segment: bakeries in Tamil Nadu get a different email from logistics companies in Pune.

Calls to action

Ask for a reply, not a meeting:

Good: "Worth a quick chat?" / "Is this on your list this quarter?"
Harder: "Book 30 minutes here: [calendar link]"

A link in the first email adds deliverability risk and asks for a bigger commitment. Send the calendar link after they reply.

Follow-ups

Most replies come from follow-ups, not the first email. We usually run 3 to 4 emails over two to three weeks:

Day 1: first email
Day 3 or 4: short bump, in the same thread. "Any thoughts on this?"
Day 8: a new angle or a short example
Day 15: a polite close. "I'll leave it here. If it's ever useful, just reply."

Stop the sequence the moment someone replies, including out-of-office replies that give a return date.

Make opting out easy

End with something like: "If this isn't relevant, just say so and I won't follow up." It feels counterintuitive, but people who can say no easily don't hit the spam button. That protects your domain and keeps you within Gmail's spam rate limits.

Keep it plain

Plain text, no images, no tracking pixel, no link in the first email. It reads like a person wrote it, and it lands in the inbox more often.

Measure the right thing

Track positive reply rate: replies that show interest, divided by emails delivered. For well-targeted B2B campaigns, 2 to 5% is a solid result. Open rates are too unreliable to guide decisions.

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