To write a professional email, use a specific subject line, greet the person by name, state your purpose in the first sentence or two, keep the body short, end with a clear request, and sign off with your full name. Then proofread before you send, checking names, dates and attachments.
Subject lines that say what the email is for
The subject line decides whether your email gets opened now, later or never. A vague line such as “Question” or “Following up” forces the reader to open it just to learn what it’s about. A specific one tells them before they click.
Compare “Meeting” with “Budget review moved to Thursday 2 pm.” The second one could be the whole message. Put the action or the deadline in the subject when there is one, like “Signature needed on lease renewal by Friday.” If you’re replying to an old thread about something new, start a fresh email with a fresh subject so the topic doesn’t get buried.
Greetings and sign offs for different readers
| Who you are writing to | Greeting | Sign off |
|---|---|---|
| Someone you have never contacted | Dear Ms. Lastname, or Dear Hiring Manager, | Sincerely, or Best regards, |
| A client or senior colleague | Hello Dr. Lastname, | Best regards, |
| A coworker you know well | Hi Firstname, | Thanks, or Best, |
| A group or team | Hi everyone, or Hello team, | Thank you, |
When you’re unsure, lean slightly formal on the first message, then mirror the tone the other person uses in their reply. Double check the spelling of every name, and avoid “To whom it may concern” if a quick search of the company website can give you a real name or title.
The first two sentences carry the email
Many readers skim the top and decide from there. Open with who you are, if they don’t know you, and why you’re writing. A line like “I’m the project coordinator at your supplier, and I’m writing to confirm next week’s equipment delivery” does both jobs at once.
Keep the body to a few short paragraphs. Put one topic in each email where possible, because a second request tucked at the bottom often gets missed. If you need several answers, number the questions so the reader can reply point by point.
End with the specific next step and a date when timing counts. “Could you send the signed form by Wednesday?” gets a faster response than “Let me know your thoughts.”
Everyday words beat corporate filler. Write “I need” instead of “I was wondering if it might be possible,” and cut phrases like “per my last email,” which tend to read as irritated. Short sentences are easier to scan on a phone, where many people will open your message first.
Attachments, CC and reply all
Mention every attachment in the body, name the files clearly and attach them before you write the message, so you don’t forget. Very large files may bounce, so a shared link from your company’s storage service can be the safer choice.
CC people who need to stay informed but don’t need to act. Use BCC for large lists of outside recipients so you don’t expose everyone’s address. Hit reply all only when every person on the thread needs your answer; a quick “Thanks!” to twenty people rarely does.
Add a signature block with your full name, title, organization and the best phone number. It saves the reader from hunting for your contact details.
Proofreading before you press send
- Read the email once out loud, or at least slowly, to catch missing words.
- Confirm names, titles, dates, times and figures against the original source.
- Open each attachment to check it’s the right version.
- Remove anything written in frustration; tone reads harsher on a screen than in person.
- Check the recipient fields last, and fill in the To line only when the message is ready.
That last habit keeps a half finished draft from going out by accident. If your email program has a delayed send or undo send option, turning it on gives you a few extra seconds to catch a mistake.
Frequently asked questions
How do you start a professional email to someone you do not know?
Use a formal greeting with their name and title, such as Dear Ms. Lastname. In the first sentence, say who you are and how you're connected, then state why you're writing. If you can't find a name, use the role, such as Dear Hiring Manager, rather than a generic phrase.
How long should a professional email be?
As short as it can be while still giving the reader everything needed to act. For most messages that means a few brief paragraphs. If the topic needs more detail, summarize the key point and request at the top and put supporting information below or in an attachment.
Is it okay to use exclamation points in a work email?
Occasionally, in a friendly thank you or congratulations to someone you know. In a first message, a complaint or a formal request, leave them out. Too many can make an email read as rushed or less serious, so save them for moments that are clearly positive.
