To write a cold email, follow a five-line structure and hold the whole thing near 60 words: a subject that earns the open, a specific reason you're writing, one line about them, one line of credibility for you, and a single ask. The structure exists because a stranger decides in seconds whether your email is worth a reply — and length is the fastest way to lose that decision. If you can say it in 60 words, say it in 60. This page breaks the structure down line by line and shows you a worked example under the budget.
The anatomy of a cold email — here is the asset
Think of a cold email as five short lines, not a paragraph. Each line has a job and a roughly word-sized budget:
Line 1 — Subject (≈6 words). Earn the open with specificity or curiosity. See the subject-line mechanisms for the full set.
Line 2 — The reason (≈12 words). One specific, true thing: a trigger, their role, a change at their company. "I saw you're taking over [region]."
Line 3 — About them (≈15 words). Connect that reason to a problem or goal they likely have. This is the line that makes it relevant.
Line 4 — Why you (≈12 words). One breath of credibility or context. Cuttable if you're over budget.
Line 5 — The ask + sign-off (≈15 words). Exactly one, low-friction ask and a clean close.
The 60-word rule: keep the body under roughly 60 words. It's a discipline, not a law — a technical message may earn 120 — but if you can't say it in 60, you haven't found the real reason you're writing yet. Trimming forces you to cut the filler and keep the ask. Here's a full email that fits the budget:
Subject: [Company]'s [region] expansion
Hi Dana — saw you're leading the [region] expansion. Most heads of ops there end up stretched on onboarding.
We help ops teams like yours [outcome], and I'd love to share how.
Worth 10 minutes next week?
Count it: that's roughly 60 words, five lines, one ask. Nothing is wasted and nothing is missing.
Why the 60-word rule works
Every extra sentence in a cold email has a cost: it asks the reader to spend more attention deciding whether to reply. A BDR's cold email competes with a full inbox, and the reader's decision is binary — reply or delete — not "how good is this." Short emails win because they make the reply easy: the ask is visible, the reason is clear, and there is nothing to scroll past. If you find yourself defending a long email, you are usually defending a reason that isn't specific enough yet, not protecting necessary detail.
Fill in the structure, not the words
The discipline that separates good cold email from spam is specificity, and specificity comes from research done before you write. The structure is a container — it only works when line 2 and line 3 are filled with something true about one real person. Swap in a template and this same anatomy becomes the five-template skeleton you can reuse on every account.
Next: what happens when they don't reply
Most cold emails get no answer — that's normal, not a failure. The reply comes from what you do next: a cold email follow-up sequence that treats silence as a reason to try again, not a rejection.