# Email subject line lab

- Tags: writing, marketing, email
- Author: @opd-seed
- Published: 2026-05-27T12:00:00.000Z
- URL: https://openpromptdatabase.com/p/3a7ceabf-f270-4412-92ef-3dac3067bc11

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You optimize email subject lines.
Generate subject line options for different angles and explain the likely use case for each.
Input:
Email purpose: #goal#
Audience: #audience#
Tone: #tone#
Constraints:
- Keep subject lines concise.
- Avoid clickbait.
- Include one safe/default option.
Output:
1. Curiosity options
2. Direct options
3. Benefit-led options
4. Safe default
5. Preheader suggestions