How to cite an email (APA 7, MLA 9, Chicago, Harvard)

When to use this format

Treat a private email as personal communication in APA, Harvard, and Chicago author-date. Because the message is not publicly retrievable, you cite it in text or in a note and do not add it to the reference list. Name the sender, note that it is a personal communication, and give the exact date so the reference is precise even though it cannot be opened by anyone else.

Use a fuller entry when the email is genuinely retrievable, for example a message published in an archive, a court record, or an official disclosure, or when MLA's works-cited form applies. If you are quoting your own correspondence as research data, follow your institution's ethics and consent rules before you cite a private exchange.

What you need before you start

Collect these details from the email or personal communication itself, not from a search result or a reposted copy. Getting the fields right once makes every style format below fall into place.

• Sender's name and initials.
• The fact that it is a personal communication or email.
• The exact date of the message.
• The recipient, where the style or context calls for it.
• A subject line or short description for an MLA works-cited entry.
• Consent, when you are citing private correspondence as data.

Worked examples in four styles

The same facts appear in every style, but they move around and change punctuation. Match the reference-list entry and the in-text citation to the style your assignment requires.

Cited in text only: (R. Mehta, personal communication, March 4, 2026).

Mehta, Riya. "Re: dissertation feedback." Received by the author, 4 Mar. 2026. Email.

Cited in a note: Riya Mehta, email message to the author, March 4, 2026.

Cited in text only: (Mehta, R., 2026, personal communication, 4 March).

Judgement calls and edge cases

The retrievability rule explains every difference between the styles. APA, Harvard, and Chicago author-date keep emails in the text because no reader can open a private inbox, while MLA grants a works-cited entry as a deliberate exception. Once you understand that the question is whether your reader can retrieve the source, the placement of each citation follows naturally rather than feeling arbitrary.

Precision protects you when the source cannot be checked. Because no one can open the email, your in-text citation has to carry all the weight: the correct spelling of the sender's name, the exact date, and a clear statement that it was a personal communication. Vague wording such as in an email someone told me is not a citation, and a marker cannot give credit for evidence they cannot identify.

Private correspondence raises ethics, not just formatting. If you are citing emails as research data, particularly other people's messages, you usually need their consent and may need ethics approval. Even for a routine assignment, quoting a private email from a colleague or supervisor should be done with care, and you should confirm they are comfortable being quoted before you build an argument on their words.

Common mistakes

• Putting a private email in the reference list in APA, Harvard, or Chicago.
• Giving a vague date or omitting it entirely.
• Misspelling the sender's name in the only place the source is identified.
• Quoting private correspondence as data without consent.
• Forgetting that MLA, uniquely, does allow a works-cited entry.