TL;DR:
A first email earns a reply by being relevant to them, short, and asking for one small thing.
Say why you are writing to them in particular in the first two lines.
Cut hype, flattery and long product descriptions.
You are writing to someone who has never heard of you and has a full inbox. They will decide in a few seconds whether to read the rest. The email that gets answered is usually the shortest one that makes clear why it is for them and what you want.
When a cold email makes sense
Write one when you have a real reason to think the person has a problem you can help with, or something to learn from them. If you cannot say that reason in one sentence, do more research first; the email will not fix it.
Before you write
Find one specific, true detail about them or their company that connects to your reason. A recent post, a new product, a job listing.
Decide the single thing you want them to do. A short call, a reply to one question, or a pointer to the right person.
Check you have the right address and the right person. A wrong name is the fastest way to be ignored.
Follow the rules that apply where you work on contacting people by email, and always make it easy to say no.
Step by step
Write a plain subject line: Make it specific and short, such as "Question about your booking process". Avoid capital letters and promises.
Open with relevance: In one sentence say why you are writing to them: the detail you found and why it made you think of this.
Say what you do in one sentence: State it in the words a customer would use. No lists of features, no claims you cannot back up.
Make one ask: Ask for something small and easy to answer. A yes or no question is easier than "let me know your thoughts".
Give an easy way out: Add a line such as "If this is not your area, who should I ask?" It lowers the effort of replying.
Cut by a third: Read it aloud and delete every sentence the reader would not miss.
Worked example: a short email to a new prospect
Say you run a small service that helps clinics send appointment reminders, and you are writing to Dana, an operations manager at a clinic group that has just opened a new location. All names are made up.
Subject: Reminders at your new location
Hi Dana,
I saw on your site that you opened a new location this year. When a clinic adds a site, missed appointments are often the first thing that gets messy to track.
I help clinics send appointment reminders by text and email, so fewer slots go empty.
Would it be useful if I sent a one-page example of how a clinic your size sets this up? If someone else handles this, I would be grateful if you could point me to them.
Thanks,
SamCheck it against the three rules. Relevance: the first paragraph names a real detail and ties it to a problem. One ask: the only request is a one-page example. No hype: it says "fewer slots go empty", not "transform your business", and it makes no number-based claim.
Count the length. The body is about seventy words, which fits on a phone screen without scrolling. Notice also what is left out: no company history, no list of features, no attachment, no request for thirty minutes on a call with someone who does not know you.
Mistakes to avoid
Opening with "I hope this email finds you well" or a paragraph about yourself.
Flattery that could be sent to anyone, such as "I love what you are doing".
Two or three asks in one email. Pick one.
Big promise words like guaranteed or unbeatable, which readers learn to skip because every sender uses them.
A fake "Re:" in the subject or any claim of a past conversation that never happened.
Sending the same text to hundreds of people without checking the detail is correct for each.
Note: If someone says no or asks you to stop, do. Note it in your records so nobody else on your side writes to them again.
A checklist before you press send
Is the person's name and address correct, and is the detail about them true?
Can you state your reason for writing in one sentence without looking at the email?
Is there exactly one question or request, and is it easy to answer in a few words?
Would you be comfortable if they forwarded it to a colleague?
Does it read well on a phone, without scrolling much?
If any answer is no, fix that one thing first. Most weak first emails fail on the second question: the writer cannot say why this person, so the email talks about the sender instead. When that happens, go back to research rather than polishing the wording.
Read the subject line one last time on its own, as it will appear in an inbox list beside the sender name. Would you open it? Also decide before sending what you will do when there is no reply. A planned follow-up is far better than an improvised one, and it lets you send the first email without worrying that it must do everything.
Doing it faster
Keep a skeleton of the five parts and fill in the first sentence by hand every time; that sentence is the part that cannot be reused. Draft in your normal email app and read it on your phone before sending. DuckyHelper can read a draft on your screen and tell you out loud where it runs long, but it's built to ask first before it sends anything.
Frequently asked questions
How long should a first email be?
Short enough to read without scrolling on a phone. Four to six sentences is usually enough.
Should I attach anything?
Usually not on the first email. Offer it instead and send it if they say yes.
