Most advice on writing a professional email is about what to add: pleasantries, context, a warm close. In practice, the emails that read as most professional are the ones with the least in them. They are specific, they are short, and they make it obvious what the reader is supposed to do next.
This guide is the format, the openers and closers worth memorising, the phrases that quietly undermine you, and a free tool that will write the whole thing if you are replying to something rather than starting from scratch.
A professional email has six slots. If a sentence does not belong to one of them, it is almost always padding.
The order matters more than the wording. Readers skim professional email on a phone, in a queue, between meetings. Burying the request under a paragraph of preamble is the single most common reason a perfectly polite email goes unanswered for a week.
A professional subject line names the thing and the action. "Quick question" and "Following up" are invisible in a full inbox, and they are impossible to find again later.
If the email needs a decision, put the deadline in the subject. It is the one place a reader always sees.
"Hi [Name]," covers almost every professional situation, including most emails to senior people. Reserve "Dear [Name]," for first contact with someone external, formal or significantly senior, and for anything that might end up in a legal file.
Then go straight to the point. "I hope this email finds you well" is not rude, it is just empty: it costs the reader a line and tells them nothing. Replace it with a sentence that does work:
This is the rule that fixes more emails than every other rule combined. Lead with what you need and by when, then explain. The explanation is for the reader who wants it; the ask is for the reader who does not.
Name a date. "When you get a chance" is how a request disappears for three weeks. "By Thursday, so I can send the deck on Friday" gives the reader something to decide about, and an easy way to push back if the timing does not work.
Close with a next step, not a feeling. "Let me know your thoughts" puts the work of deciding what happens next onto the reader; "I'll send the draft Monday unless you'd rather review the outline first" does not.
For the sign-off itself: "Best regards" and "Kind regards" are safe everywhere, "Thanks" works when you have actually asked for something, and "Best" is fine for anyone you email regularly. Pick one and stop thinking about it — consistency reads as more professional than variety.
None of these are mistakes exactly. They are habits that signal hesitancy, and they accumulate.
Replying is a different problem from writing, and it is the more common one. The content already exists in the message above; what you need is not inspiration but a draft that answers every question that was actually asked, in the right register.
That is what the free email reply generator is for. Paste the email you received, choose Professional from the four tones, and you get a complete reply: greeting, a response to each point raised, and a sign-off. Edit it or send it as it is.
One detail worth getting right: paste the email whole, including the greeting and the sign-off. Those two lines carry the formality level and the language of the exchange, and they are the difference between a reply that matches the thread and one that reads like a template. If you are starting from a blank page instead, the openers in help me write an email cover the seven messages people get most stuck on.
Three of the most common situations, written to the format above.
Each one is under fifty words, leads with the point, and ends with a next step. That is what professional means in practice.
The honest limitation of any AI draft is that the first one sounds like nobody in particular. It is grammatical, complete and slightly bland, because a model with no information about you has to average across everybody. For formal email that is less of a problem than it is anywhere else — professional writing is conventional by design — but it still shows.
The fix is memory. In the Mac app, every reply you approve teaches the assistant how you greet people, how you sign off, and whether you write three lines or fifteen. After ten replies the drafts need noticeably fewer edits, because they have stopped guessing. You can read more about how the assistant learns your style.
And you stay in control throughout. Nothing is ever sent for you: every draft lands in an editable box and only reaches your inbox when you put it there. You can see everything the assistant has learned, and reset it, from Settings.
| What you need | Where to do it |
|---|---|
| A professional reply to an email you received | Free generator, in any browser |
| Reply without leaving your mail app | MailReply for Mac, ⌃ Space |
| Write a professional email from scratch | The format and openers above |
| Help with a message you are stuck on | Help me write an email |
Six parts, in order: a specific subject line, a greeting with the person's name, the ask in the first two lines, one short paragraph of context, a clear next step, and a plain sign-off. Anything that does not fit one of those six slots can usually be cut.
"Hi [Name]," for almost everything; "Dear [Name]," for a first approach to someone external, formal or senior. Then go straight to why you are writing. Drop "I hope this email finds you well" — it costs a line and tells the reader nothing.
Yes, and it handles the formal register well, because professional email is the most conventional writing there is. The MailReply email reply generator is free in the browser with no sign-up, up to five generations a day: paste the message, pick the Professional tone, and you get a complete reply.
Cut the first sentence and the last sentence. AI drafts almost always open with a pleasantry and close with an over-eager offer to help; removing both usually leaves a message that reads like a competent human wrote it quickly, which is the register you want.
Paste the email you are stuck on, choose the Professional tone, and get a complete draft. Free, no account, no card.
Try the free email reply generator