How to Write an Email in English: 9 Rules That Cover Every Message

To write an email in English, give it a specific subject line, open with a greeting that matches the formality of the situation, state your main point in the first two sentences, keep the language short and plain, phrase requests as “Could you please…,” and close with a sign-off such as “Best regards” above your name.

If English isn’t your first language, the format is rarely the real problem — the second-guessing is. Does this greeting sound stiff? Will this request come across as rude? The reassuring truth is that professional email in English runs on a small set of fixed conventions, closer to grammar than to talent, and you can learn them once and reuse them for years. The nine rules below carry a message from subject line to signature — and each one exists because it prevents a specific way emails go wrong.

1. Write the subject line as a label, not a greeting

The subject line’s job is filing, not friendliness. The recipient scans a crowded inbox and decides in about a second what your message is, whether it matters, and whether it can wait — so name the topic and the kind of message in a few concrete words: “Invoice 2041 — payment confirmation,” “Question about Thursday’s deadline,” “Meeting notes, June 12.” Business-English trainers such as Talaera single out vague subjects — “Hello,” “Question,” “Urgent” — as the fastest way to get ignored, because they give the reader nothing to file. And reserve “urgent” for genuine urgency; used routinely, it stops meaning anything.

2. Choose the greeting by formality, not habit

For a formal email to a named person, use “Dear Mr. Chen” or “Dear Ms. Silva.” Keep “Dear Sir or Madam” for the rare case where you genuinely cannot find a name. For colleagues and people you already correspond with, “Hi” plus a first name is the everyday standard. And when you’re not sure which register applies, language schools from Wall Street English to EC English repeat the same rule of thumb: choose the more formal option. Extra formality reads as respect; extra casualness reads as presumption. No one has ever been offended by “Dear.”

3. State your main point in the first two sentences

English business writing puts the conclusion first and the background after — for many writers, the reverse of what school trained them to do. Say why you’re writing almost immediately: “I’m writing to ask whether…” If your request only surfaces in paragraph three, an English-speaking reader doesn’t experience the delay as politeness; they experience it as vagueness. Front-loading is not rude. It respects the reader’s time, and it is the convention that guides from the British Council’s business-English materials to Grammarly’s agree on most strongly.

4. Keep sentences short — and skip the idioms

Short sentences. Short paragraphs. No idioms, slang, or abbreviations your reader might not share. For a non-native writer this rule is a quiet relief: English email rewards plain structure, so writing simply in your second language is not a limitation — it is exactly what the genre asks for. Aim for one idea per sentence and two to four sentences per paragraph, with white space between them. Nobody reading forty messages before lunch has ever wished an email were more elaborate.

5. Soften requests — bare imperatives read as rude

“Send me the file” is grammatically flawless and sounds like an order. English email culture expects requests to be cushioned with conditionals: “Could you please send me the file?” “Would you be able to review this by Friday?” Trainers who specialize in non-native business writing, like the team at Talaera, list unsoftened imperatives among the most common mistakes they see — the writer intends efficiency, the reader hears rudeness. “Please” and “thank you” do more work in English email than their size suggests.

The uncomfortable part is that you can’t hear your own tone in a second language, and colleagues rarely say anything when a message lands badly. If you’d rather know than wonder, it takes only a few minutes to check your communication blind spots instead of waiting for feedback that may never arrive.

6. Match the register from greeting to sign-off

Formality is a setting for the whole email, not for individual sentences. A message that opens with “Dear Dr. Osei” should not close with “Cheers!” — and a relaxed thread with a teammate doesn’t suddenly need “Yours sincerely.” In formal messages, skip contractions and casual asides; in informal ones, stay warm without sliding into slang. A consistent register is what makes an email feel deliberate; a mixed one reads as accidental.

7. End with a clear action request

Most work emails exist to make something happen, so close with exactly what you need and by when: “Could you confirm the schedule by Wednesday?” “Let me know when you would be available to meet next week.” A message that trails off without a request forces a second email to ask for what the first one only implied. And when nothing is needed, say that too — “No reply needed; just keeping you informed” is a small courtesy that saves the reader a decision.

8. Pair the sign-off with the greeting

British convention ties the sign-off to the greeting: “Yours faithfully” ends an email that began “Dear Sir or Madam,” while “Yours sincerely” ends one addressed to a named person. It is a fixed pairing — memorize it once and it stops costing you thought. When it feels too heavy for the occasion, “Best regards” and “Kind regards” are the safe middle ground nearly every guide endorses for everyday professional mail. Under the sign-off, write your full name; for a first email to someone new, add your role and contact details so the reader knows exactly who is asking.

9. Proofread before you send

Emails are short, so small errors are unusually visible. Missing articles are the classic slip for non-native writers — “Please find attached report” instead of “Please find attached the report” — precisely the kind of mistake that hides through five rereads. Check the spelling of the recipient’s name, confirm the attachment is actually attached, and read the message once from the recipient’s side of the screen. Career guides like Indeed’s make the underlying point plainly: an error-free message signals attention to detail, and that impression carries over to how your work is judged.

The skills that make email writing in English easier

Read back through the nine rules and notice what’s missing: almost none of them is about English. Vocabulary and grammar barely appeared. The rules are about judgment — what the reader needs first, how formal this situation is, how a request sounds on the other side of the screen. That judgment comes from a small set of workplace skills, and every one of them can be practiced.

Communication is the skill the rules come from. Lead with the main message, be brief, be clear and direct, adapt to the receiver — the email conventions above are those principles in written form. Hold on to the principles rather than the templates and you stop hunting for phrases before every message: the same judgment writes the subject line, the first sentence, and the closing request, whatever tomorrow’s email happens to be about.

Professional Behaviors explains why the conventions exist at all. Greetings, sign-offs, and register are politeness made visible: an email is often the first impression a recruiter, professor, or overseas colleague gets of you, and courtesy on the page is how professionalism gets read in writing. The reassuring consequence is that this is a set of learnable norms, not a language talent — nobody was born knowing when “Yours faithfully” applies, and everyone who uses it correctly once looked it up.

Building Confidence is the skill that actually gets the message sent. Writing in a second language invites rewriting the same paragraph five times and postponing the send until tomorrow. Confidence builds in the opposite direction: start with small, low-stakes messages, let the structure above do the carrying, and treat every sent email as one more piece of evidence that you can do this. A clear message with one imperfect article beats the flawless email still sitting in your drafts.

You don’t have to guess at any of this, either. The free Work Skills Test measures where you stand on all twelve skills working life draws on — these three included — and separates the skills already carrying you from the ones worth training next, so a gap stays what it is: something to close, not something to hide.

Some of these rules are probably in your emails already — you may keep sentences short or double-check names without ever having called it a method. What’s left is doing the rest knowingly, and nothing about that asks you to become a different writer: the conventions can be picked up at any point, in any accent, and your messages stay recognizably yours. The effort is worth spending because email compounds — messages get forwarded, reread, and quoted long after you hit send, so every clear message keeps working for you, while an accidentally blunt one keeps costing. You’ve already started on the habit that fixes it: you looked up the conventions before sending instead of guessing, which is the step most writers skip. What remains is knowing which skills are already carrying you and which need deliberate work — and that is measurable.

Find out before your next email goes out

The rules are now on your side; the remaining variable is you. The free Work Skills Test asks quick questions about how you actually work and turns the answers into a profile of all twelve work skills — including the communication, professionalism, and confidence this article leaned on. You’ll see where you stand on each and which one to build first, so your next email in English takes less deliberating and lands the way you meant it.

Take the skills test

Free — takes about 7 minutes.