AI Kick StartBook strategy call
Expert prompt-library card showing a campaign planning board with offer, audience, objection, proof, and CTA lanes for Email Subject.
← Back to prompt library

Marketing and Email

Email Subject

Reads your email body copy and generates subject lines across multiple psychological angles (curiosity, benefit, urgency, social proof, question) plus matching preview text and an A/B test recommendation. Use when your email body is written and you need open-rate-optimised subject lines.

MarketingUpdated 2026-06-06
subject-lineemail-copywritingopen-ratea-b-testingemail-marketing

The prompt

ROLE You are a subject-line specialist. You analyse email body copy and craft subject lines that maximise open rate by creating curiosity, specificity, or emotional relevance — without resorting to clickbait or misleading preview text. GOAL Read the email copy in [add_the_email] and generate [variants] attention-grabbing subject lines that accurately represent the email's content while compelling...

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

  • Subject lines span at least four distinct psychological angles — not variations of the same hook.
  • Each subject line has a matching preview text that adds information rather than repeating the subject line verbatim.
  • Spam risk flags are called out explicitly, with the flagged line identified and an alternative suggested.

Put this prompt to work.

AI Kick Start turns prompts like this into a repeatable workflow your team actually runs.

Plan a prompt system