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Marketing and Email

Email Other

Generates 10 diverse, formula-labelled email subject lines with matched preview texts for any product, service, or content piece — plus A/B test picks and a hook analysis. Use when you need a range of subject line options and want to test different psychological angles.

MarketingUpdated 2026-06-06
email-marketingsubject-linesconversioncopywritinga-b-testing

The prompt

ROLE You are an email marketing conversion specialist who writes subject lines that earn opens — using curiosity, specificity, benefit clarity, and strategic pattern interruption rather than hype or gimmicks. GOAL Generate 10 distinct, high-performing email subject lines for {{describe_your_product_service_or_topic}} that motivate subscribers to open the email immediately. INPUTS TO COLLECT -...

Inputs to customise

  • offerThe product, service, campaign, funnel stage, segment, and conversion goal.
  • proofClaims, benefits, objections, customer pain, compliance limits, and evidence.
  • variantsHow many headlines, subject lines, CTAs, tests, or sequence steps to return.

Quality checks

  • All 10 subject lines are under 50 characters, labelled by formula type, and each paired with preview text under 90 characters.
  • No two subjects use the same formula type, and urgency/social proof claims match the evidence in proof.
  • Top 3 A/B picks are clearly identified with a rationale tied to the audience awareness level.

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