A professional email has six parts: a subject line that says what the message is about, a greeting with the reader's title and name, your purpose in the first sentence, one clear request, a sign-off, and a signature that says who you are. Universities' study-skills pages and government writing guides agree on that shape.
This guide is published by EdCitation. Every piece of advice was read at its source on 26 September 2026 and is credited where it appears. Where the sources differ, we say so; where a line is our own view, we say that too. The templates are ours.
EdCitation never writes anyone's emails or papers. Two free tools sit beside the email: Check your paper reads an assignment's instructions into a checklist, so you can see whether the brief already answers your question, and Cite a source builds the reference when an email or report points to guidance. We tested both for this guide, faults included.
How do you structure a professional email?
Put the purpose first and the request where it cannot be missed. The US General Services Administration (n.d.), in its plain language guide on Digital.gov, tells writers to open with the purpose and the bottom line and leave background until later. RMIT University's Learning Lab (n.d.-b) teaches the same order for workplace email: most important point first.
- Check the answer is not already written down. The University of North Carolina at Chapel Hill Learning Center (n.d.) and the University of Southampton (n.d.) both send students to the syllabus or module handbook first. For an assignment, Check your paper lists the word limits, sources and citation style with the sentence of the brief each came from.
- Write a specific subject line, with the course or module code and the topic.
- Greet the reader by title and surname until they invite you to use their first name.
- State your purpose in the first sentence, and say who you are.
- Make one request, with the date it depends on and the kind of reply you need.
- Sign off and sign your name, with your student ID and course, or your role and organisation.
- Proofread, open every attachment you mean to send, and check every link.
The subject line
A subject line works like a headline. The University of North Carolina at Chapel Hill Writing Center (n.d.) warns against one-word subjects such as "Question" and suggests a date when the message is time-sensitive. RMIT warns the other way: a subject that tries to say everything becomes a sentence. "ENGL 101 essay 2: question about the source requirement" is about right.
One purpose, one request
The UNC Writing Center suggests pasting in the exact words you are asking about, such as a sentence from the assignment prompt, ending with the outcome you want, and sending separate emails for unrelated questions. In our view, one request per email is the change that most improves the chance of a clear answer: a reader can say yes to one thing quickly.
Which greeting and sign-off should you use?
Match the sign-off to the greeting, and when unsure, be more formal.
| Situation | Greeting | Sign-off | Source |
|---|---|---|---|
| First email to a lecturer or professor | Dear Professor [Surname], or Dear Dr [Surname] if that is their title | Kind regards, or Many thanks, with full name and student ID | University of Southampton; RMIT Learning Lab |
| Unsure whether a US professor holds a doctorate | Dear Professor [Surname] | Thank you, | UNC Learning Center |
| A tutor who has asked you to use their first name | Dear [First name], or Hello [First name] | Best wishes, | University of Southampton; RMIT Learning Lab |
| Name unknown, formal letter style | Dear Sir or Madam, or Dear members of the selection committee | Yours faithfully (after Dear Sir or Madam) | RMIT Learning Lab; UNC Writing Center |
| A group or team | Hello, everyone, or Dear all | Best wishes, | UNC Writing Center; RMIT Learning Lab |
| A colleague you know well | Hi [First name] | Best, or Thank you, | RMIT Learning Lab; UNC Writing Center |
| Job application or very formal request | Dear [Title] [Surname] | Yours sincerely, or Sincerely, | RMIT Learning Lab; UNC Writing Center |
| You cannot tell which name is the family name | Dear [both names as the person writes them] | Kind regards, | RMIT Learning Lab |
Southampton writes Ms without a full stop, the usual British form, while UNC and RMIT write Ms. and Dr. with one; either is fine if consistent. "Hey" is ruled out for anyone you do not know well by every university page we read that mentions it: Southampton, both UNC pages and RMIT.
How do you write an email to a professor or tutor?
Check first that email is the right route, then keep it short and specific. The UNC Learning Center lists what suits email (deadlines, clarifying a requirement, booking a meeting) and what is better in person, such as going over a grade.
Is email the right route?
For extensions it often is not. At the University of Bristol (n.d.), most students request a coursework extension through an online form, 48 hours before the deadline; up to seven days is normally considered, and documents can follow up to four calendar days after the deadline. At the University of Edinburgh (n.d.), an extension normally lasts four calendar days, three are allowed a year, and no evidence is asked for, only a reason from a list. Read your own procedure before you write, and if it names a form, use the form.
What a lecturer needs to see
RMIT and Southampton ask for the module code, because lecturers teach more than one unit, and RMIT adds your student ID. Send from your university address, as UNC and RMIT both advise. The UNC Learning Center adds that a sent email belongs to its recipient and can be forwarded; Southampton's test is that if you would not write it on a postcard, you should not email it.
For supervision, see working with your supervisor; this guide covers the single message.
How do you write a follow-up email?
Reply in the same thread, restate the request in one sentence, and say why the timing matters. The two UNC pages disagree on the wait: the Learning Center calls 24 hours in the working week a standard reply window, while the Writing Center says to assume a reply may take a few days. No source we read sets a rule for following up. In our view, three working days is fair, sooner only when a deadline is closer, and the follow-up should be shorter than the original. If nothing comes back, ask whether someone else handles the matter, such as a programme administrator or student office.
What tone should a professional email take?
Polite, plain and neutral. The Government Digital Service (n.d.-b) describes GOV.UK's tone as specific, clear and concise, "brisk, but not terse", and serious without being pompous. That guidance is written for web pages, but in our view it carries over to email: use the active voice, address the reader as "you", and avoid block capitals, which it says can read as shouting. Its A to Z style guide (Government Digital Service, n.d.-a) asks writers to check any sentence over 25 words.
On "please" the sources part ways. GOV.UK says instructions to the public usually need no "please". RMIT ranks requests from very polite ("Would it be possible to...") down to a direct order ("Please raise this..."). Both fit their setting: a public page gives instructions, while an email asking a favour is a request, and the question form suits it. RMIT also notes that "you claim that" sounds accusing where "you tell us that" does not.
What the research says about tone in email
Tone is easier to lose in email than writers think. In one of five experiments by Kruger et al. (2005), 60 Cornell students passed statements, some sarcastic and some serious, to a partner by email or by voice recording. Listeners identified nearly three quarters correctly; email readers did no better than chance, yet the two groups of senders were equally confident. In another, email readers believed they had understood 89.3% of the intended tones and got 62.8%, and friends did no better than strangers. Senders could not use emoticons. The authors trace the gap to egocentrism: writers hear their own tone, readers do not.
Biesenbach-Lucas (2007) studied 533 email requests from native and non-native English-speaking graduate students to one professor at a US university over six semesters. For appointments and feedback, students leaned towards asking directly. For extensions, native speakers turned to indirect forms such as "I was wondering if it would be possible", and to hints such as saying they were struggling, while non-native speakers most often used "could you" for every kind of request. The study describes what students wrote, not which emails succeeded. In our view, ask plainly and politely: a hint leaves the reader guessing (see also academic writing in a second language).
When should you reply all, copy someone in or attach a file?
Reply all only when everyone on the list needs your answer, as RMIT warns. The UNC Writing Center explains the fields: everyone sees the addresses in To and Cc, only the To address shows when you use Bcc, and someone blind-copied can still reveal it by replying to all. Copying a manager can move a stalled request, the handout notes; in our view, do it openly and rarely on a first message.
Attachments
Name the file for what it is, mention it in the body, and make sure it can be read. The US General Services Administration (2026) asks for a unique, descriptive file name and either an accessible document or its text in the email, since a scanned PDF cannot be read by a screen reader. GOV.UK's style guide asks for email addresses written in full, in lower case, as working links.
How do you make an email accessible?
Write plainly, keep the default contrast, describe images and links, and send readable attachments. Section508.gov, run by the US General Services Administration (2026), sets nine steps for federal email. Among them: spell out acronyms at first use; avoid italics and directions that depend on colour or position; keep black text on white, or a contrast ratio of at least 4.5:1; give meaningful images alt text; write link text that makes sense alone, never "click here"; use a sans-serif font of at least 10 to 11 point; and keep the signature free of decorative images. In our view this helps every reader, not only screen-reader users.
Our professional email templates
These three templates are EdCitation's own. Replace everything in square brackets.
Asking a professor for an extension
Use this only where your course takes extension requests by email; if your university uses a form, use the form.
Subject: [Module code] [assignment name]: extension request
Dear Dr [Surname],
I am writing to ask for an extension to [assignment], due on [date], for [module code and title].
[One or two sentences: what has happened and how it affects the work. Say whether you can provide evidence, and by when.]
I have read the extension procedure in [the module handbook]. I am asking for [number] days, to [new date].
Would that be possible, or should I apply another way?
Kind regards,
[Full name]
[Student ID], [programme and year]
A follow-up
Subject: Re: [original subject, in the same thread]
Dear [Title] [Surname],
I am following up my email of [date], below, about [topic]. [The request again, in one sentence.] [Why the timing matters.]
If someone else deals with this, could you tell me who?
Kind regards,
[Full name]
A request at work (invented example)
The people and organisation here are invented.
Subject: Q3 cleaning supplier figures needed by Thursday 15 October
Hi Maria,
Could you send me the Q3 figures for our three cleaning suppliers by 12 noon on Thursday 15 October? I need them for the budget paper going to the finance committee on Friday.
Last quarter's sheet is attached (q2-cleaning-supplier-figures.xlsx) to show the format.
If Thursday does not work, tell me which day does and I will let the committee know.
Thanks,
Daniel Price (invented)
Facilities coordinator, Northgate Housing Trust (invented)
The subject carries the deadline and the first sentence is the request. For follow-through after a meeting, see action items that get done.
Where does EdCitation help with a professional email?
EdCitation helps with what an email points to, and never writes the email. For the references in an email or report, it is the best tool we know: it looks a paper up in the publisher's record, or reads the web page and shows what it read for you to correct, where a chatbot writes references from memory. It is free, with no account.
Bristol's extension procedure, read by Check your paper
Check your paper is built to read an assignment's instructions into a checklist, each rule with its sentence. Given the main text of Bristol's extension page (about 920 words), it returned no rules it can measure in a paper and set aside 32 sentences for you to check, among them "The deadline for the submission of an extension request is 48 hours before the coursework submission deadline.", "Only requests for extensions of up to seven days will normally be considered." and "You can upload up to 5 documents with file types JPEG, JPG or PDF." It also listed the page's own button steps, such as "Select Select to add the documents to your submission". On the key paragraphs alone (about 210 words) it set aside 11 sentences, the same three limits among them. So it lists a procedure's rules for you to read before you email, and it helps most with the brief you might otherwise email about (see how to read an assignment brief).
A guidance page and a paper, cited by Cite a source
Given the Section508.gov address, Cite a source returned:
Accessible Email Messages. (2026, July). Section508.gov. https://www.section508.gov/create/email-messages/
It read the title and the "July 2026" date the page shows, but not the author, which the page names only in its footer. Corrected in its form, with the General Services Administration entered as an organisation, it returned "U.S. General Services Administration. (2026, July). Accessible email messages. Section508.gov." with the address. Given the Kruger study's DOI, it returned the correct entry from Crossref. Verify references checks a whole list, never showing one it could not check as "not found"; Pro ($8 a month) adds whole-paper checks, as pricing shows.
Quick questions
How do you start a professional email?
With a greeting using the reader's title and surname, such as "Dear Dr [Surname]", then your purpose in the first sentence. Use a first name only once invited to.
How long should a professional email be?
Short enough to read on a phone without scrolling, in our view. The UNC Writing Center advises a meeting instead when the matter is long or needs discussion.
How long should I wait before sending a follow-up email?
The UNC Learning Center treats 24 hours in the working week as standard; its Writing Center says allow a few days. We suggest about three working days unless a deadline is closer.
Can EdCitation write my email for me?
No. EdCitation never writes emails or papers. Check your paper shows what an assignment brief asks for, and Cite a source builds the reference for guidance your email cites.
Should I use reply all?
Only when everyone on the list needs your reply; otherwise answer the sender alone.
References
- Biesenbach-Lucas, S. (2007). Students writing emails to faculty: An examination of e-politeness among native and non-native speakers of English. Language Learning & Technology, 11(2), 59–81. https://doi.org/10.64152/10125/44104
- Government Digital Service. (n.d.-a). A to Z style guide. GOV.UK content and publishing guidance. https://guidance.publishing.service.gov.uk/writing-to-gov-uk-standards/style-guides/a-to-z-style-guide/
- Government Digital Service. (n.d.-b). Use the right tone. GOV.UK content and publishing guidance. https://guidance.publishing.service.gov.uk/writing-to-gov-uk-standards/writing-guidelines/right-tone/
- Kruger, J., Epley, N., Parker, J., & Ng, Z.-W. (2005). Egocentrism over e-mail: Can we communicate as well as we think? Journal of Personality and Social Psychology, 89(6), 925–936. https://doi.org/10.1037/0022-3514.89.6.925
- RMIT University Learning Lab. (n.d.-a). Writing academic emails. RMIT University. https://learninglab.rmit.edu.au/digital-skills/online-learning-skills/writing-academic-emails
- RMIT University Learning Lab. (n.d.-b). Writing professional emails. RMIT University. https://learninglab.rmit.edu.au/writing-fundamentals/writing-workplace/writing-emails/
- University of Bristol. (n.d.). Request a coursework extension. https://www.bristol.ac.uk/students/support/academic-advice/assessment-support/request-a-coursework-extension/
- University of Edinburgh. (n.d.). Coursework extensions. Registry Services. https://registryservices.ed.ac.uk/exceptional-circumstances/coursework-extensions
- University of North Carolina at Chapel Hill Learning Center. (n.d.). Emailing professors. https://learningcenter.unc.edu/tips-and-tools/emailing-professors/
- University of North Carolina at Chapel Hill Writing Center. (n.d.). Effective email communication. https://writingcenter.unc.edu/tips-and-tools/effective-e-mail-communication/
- University of Southampton. (n.d.). Email guidance for university and work. Getting Started. https://generic.wordpress.soton.ac.uk/gettingstarted/email-at-university
- U.S. General Services Administration. (n.d.). Organize the information. Digital.gov. https://digital.gov/guides/plain-language/principles/organize
- U.S. General Services Administration. (2026, July). Accessible email messages. Section508.gov. https://www.section508.gov/create/email-messages/