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How to write an email to a professor

PT Phrasera Team · 5 min read · June 2026

Emailing a professor is a formal request, not a text — it needs a clear subject line, a proper greeting, and a short, polite, specific message. Professors get a lot of email, so the one that’s clear and respectful gets a faster, friendlier reply. Here’s how.

The structure

  1. Subject line — specific and useful: “BIO101 — question about Friday’s assignment,” not “hi” or a blank subject. (See email subject lines.)
  2. Greeting — “Dear Professor [Last name],” or “Dear Dr. [Last name],”. Use their correct title; when unsure, “Professor” is safe.
  3. Who you are — one line: your name and the course/section. They may teach hundreds of students.
  4. Your request — clear and brief. State what you need and any relevant detail (deadline, which assignment).
  5. Close — “Thank you for your time,” then your full name.

A simple template

Subject: ECON202 — extension request for Essay 2

Dear Professor Tan,

I’m Maya Putri, a student in your ECON202 Tuesday section. I’m writing to ask whether a two-day extension on Essay 2 might be possible, as I’ve been unwell this week (I can provide a doctor’s note).

Thank you for considering it.

Best regards, Maya Putri

Mistakes to avoid

  • No subject, or a vague one. It buries your email.
  • Too casual — “hey”, slang, no greeting. Keep it formal; see formal vs informal writing.
  • Too long or vague — get to the request quickly and be specific.
  • Asking what’s already answered in the syllabus — check first.
  • Typos — they read as careless. Proofread.

Polish before sending

A clean, well-judged email reflects well on you. Run it through the grammar checker, and if the tone feels off, the paraphraser on Formal mode adjusts it. Writing in a second language? Draft in your strongest one and translate as a starting point, then refine.

Clear subject, proper greeting, brief specific request, polite close — that’s an email a professor is glad to answer.

AI-powered — please review results before use.

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