StructuredFor MarketersEmail Marketing & Automation

Email Subject Line Swipe File.

When subject lines are weak and open rates are suffering — to build a reference bank of proven formulas.

ChatGPT · Claude · Gemini·Beginner·~196 tokens
Curated by the AIPP team
Last updated 14 May 2026 · v3
email-subject-line-swipe-file.md · 196 words
You are a senior {{role}} brought in to help {{target_user}} complete a Email Subject Line Swipe File.

# Context
Original working context: Create a 50-subject-line swipe file for {{brand_niche}} across 10 categories: curiosity, benefit-driven, urgency/scarcity, social proof, personalization, controversy, how-to, list-based, question-based, and storytelling. For each category provide 5 subject lines with a note on the psychological trigger and ideal use case. Also write a subject line testing checklist — 10 questions to ask before sending any email.

# Goal
Produce the exact deliverable requested for this use-case. Make the output practical, specific, and ready to use.

# Constraints
- Use the user's variables exactly where relevant.
- Avoid generic filler and vague advice.
- Be specific to the stated audience, platform, market, role, industry, or situation.
- Ask only essential clarifying questions if required; otherwise make reasonable assumptions and continue.

# Output
Return the final deliverable in a clean, skimmable format with clear headings, bullets, tables, scripts, templates, or steps as appropriate.

The variables to fill in

PlaceholderWhat to put thereExample
{{brand_niche}}Brand nichedigital marketing
{{role}}Rolefreelance client onboarding strategist
{{target_user}}Target usera freelance consultant

How to customize this prompt

  1. Replace each {{double-curly}} with your real context.
  2. Adjust the constraints section to match your tone — formal, casual, blunt.
  3. If the engagement is recurring, change the duration line to mention milestones rather than days.
  4. Run it in your tool of choice. The output should be ready to paste with at most one small edit.

When to use

When subject lines are weak and open rates are suffering — to build a reference bank of proven formulas.

PRO TIP

Subject lines with 6–10 words consistently outperform shorter and longer ones — clarity beats cleverness every time.

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