Writing Email Subjects

Overview

Create a small set of subject line options that match the email’s intent and tone without adding new commitments or changing meaning.

When to Use

• You have the body (or a rough draft) but no subject line yet

• The current subject is vague (“Update”, “Quick question”) or too long

• You need variants for different tones (neutral vs. urgent) or audiences (internal vs. external)

When NOT to use

• The subject is fixed by a system/process (ticket IDs, legal notices)

Quick Reference

• Keep it short: ~3–8 words when possible

• Put the differentiator early (topic, date, action)

• Avoid spammy phrasing (ALL CAPS, excessive punctuation)

Implementation

• Identify the email’s purpose: inform / request / confirm / schedule.

• Extract the key noun(s) and the key action or date.

• Produce 5 options:

• 2 neutral/professional

• 2 slightly more direct/urgent (if appropriate)

• 1 very short “minimal” option

Common Mistakes

• Changing meaning: Don’t imply deadlines or decisions not stated in the email.

• Too generic: “Reminder” alone is rarely helpful—add topic/date.