Why your cold email reads as AI-written

Updated 2026-09-20 · a working page, not a sales page

Recipients do not analyse your email. They scan the first line, decide if a human wrote it for them, and click delete. Generated mail fails that scan in about two seconds, and the reasons are structural rather than grammatical.

Short answer

Open with them, not you. The first sentence should be about the recipient's situation.
No 'I hope this email finds you well'. Any opener that can be sent unchanged to 500 people is a tell.
One ask, stated plainly, with the cost of ignoring it clear.
Cut the three-adjective company summary at the bottom. It reads as a signature, and nobody reads signatures.
Keep it under 120 words. Shorter is not rudeness, it is respect for a stranger's inbox.

The three tells that get mail deleted

First, symmetry: three paragraphs, each four sentences, each ending on a benefit. Real people write unevenly. Second, abstraction: 'helps teams streamline workflows' names nothing. Third, the missing detail that only the recipient would know — a date, a platform, a post they made.

You only need one of those to be fixed to change the read. The cheapest is the detail, and it costs you two minutes of research per recipient. That is also why it works.

A structure that holds up

Five lines, in this order:

one sentence naming the recipient's specific situation

one sentence naming what you have that is relevant to it

one sentence of proof, with a number if you have one

one ask with a low cost to say yes to

your name, no logo block

If a line can be removed and the email still works, remove it. Cold email is not a place to build a case; it is a place to earn a reply.

Volume, timing and the boring rules

Send during the recipient's working hours, not yours. Keep the daily volume low enough that you can read replies yourself in the first weeks — a reply that lands while you are asleep for eight hours is a reply you lose. Bounce rate above roughly four percent means your list is wrong, not your copy.

Before / after

What people usually write	What it looks like after
I hope this email finds you well. I came across your profile and was impressed by your impressive track record in the SaaS space.	You have 14 open roles on the site and one writer. That ratio does not hold past a certain size.
Our platform leverages cutting-edge AI to help businesses streamline their content operations and drive meaningful engagement.	We take a draft you already wrote and return a version that does not sound generated. Eight seconds, no new claims added.
Would you be open to a 30-minute call to explore potential synergies between our organizations?	Worth ten minutes? If not, tell me it is irrelevant and I will stop.

What this page will not do. It will not fix a bad list — if you are mailing people who have no reason to read you, the writing does not matter. Nothing here bypasses spam filters or lets you safely mass-send from a new domain.

If you want this done to your own draft: ShipCopy takes a piece of text you already wrote and rewrites it in one of three modes — rewrite it to read human, turn a product description into launch copy, or turn a plain-language request into a reusable prompt. Six output formats, 13 languages. 10 generations free, no card.

See what it does Pricing — US$15/month

Questions

How many cold emails a day is safe on a new domain?

Start near 150 a day and build up over about a week, while watching bounce and complaint rates. The limits are set by the sending provider, not by the copy.

Should there be a link?

One, and only if it goes somewhere the recipient would plausibly want. A link in the first sentence costs you credibility you have not earned yet.

Does personalisation have to be a whole paragraph?

No. One clause that proves you read something about them beats three sentences of flattery.