The 4-line email formula that gets replies.
Long emails get skimmed. Clever emails get ignored. Short, specific emails get answered. Here's the four-line structure to use for cold outreach, follow-ups and quick newsletters.
Why short emails win
Most business emails are read on a phone, in a queue, between two other things. Your reader is deciding in seconds whether to reply now, later or never. “Later” usually means never.
A short email lowers the effort to respond. If someone can read it in ten seconds and answer in one sentence, you've removed every excuse not to.
The goal of an email isn't to say everything. It's to get the next reply.
The 4 lines
Each line has a single job. If a line doesn't do its job, cut it or rewrite it.
- The hook — make it about them. Reference something specific: their business, a post they wrote, a problem you noticed. Proves this isn't a mass send.
- The problem — name the pain. One sentence on the issue they're likely facing. Be specific enough that they think “how did they know?”
- The proof — show you can help. One quick result, case study or credential. Numbers beat adjectives.
- The ask — make it tiny. A yes-or-no question, not a 45-minute meeting. Small asks get big response rates.
A real example
Here's the formula used by a web copywriter reaching out to a local gym owner:
Hi Sarah,
1Saw your new spin studio on Instagram — the before-and-after of the room is brilliant.
2I noticed the booking button on your timetable page is hidden below three paragraphs on mobile, which is probably costing you trial sign-ups.
3I fixed the same thing for another gym last spring and their trial bookings went up by roughly a third in six weeks.
4Want me to send over a quick 2-minute video showing the fix?
Cheers,
Dan
Notice what's missing: no life story, no list of services, no “I hope this email finds you well.” Just relevance, a problem, proof and a tiny ask.
The subject line
For one-to-one emails, the best subject lines look like they came from a colleague. Lowercase, short, and about their thing.
- “your class timetable page”
- “quick question about the menu”
- “idea for your next launch”
Pro tip: Avoid exclamation marks, ALL CAPS and words like “free” or “guaranteed” in subject lines. They look like marketing — and get treated like it.
Common mistakes
- Starting with “I”. Your first word sets the focus. Make it about them.
- Asking for too much. “Can we jump on a 30-minute call?” is a big ask from a stranger. Offer something useful instead.
- Hedging. Phrases like “just wondering if maybe” make you sound unsure. Be direct and polite.
- No follow-up. Many replies come from the second or third email. Follow up after three to five days, using the same four lines with a new angle.
Pre-send checklist
- Could I read this aloud in under 20 seconds?
- Does line one mention something specific to them?
- Is there exactly one question at the end?
- Would I reply to this if a stranger sent it to me?
Tick all four and hit send. Then do it again tomorrow — consistency beats cleverness every time.