subject-lines

name	subject-lines
description	Write email subject lines (and preview text) that get opens without tripping spam filters or misleading - with variations to A/B test. Use when finalizing an email or testing opens.

subject-lines

The subject earns the open; the preview text closes it. Honest, specific, curiosity - not spam.

Process

1. Angles to test: curiosity, benefit/outcome, specificity/number, question, personal/relevant, urgency (honest). Write 5-10 across angles.
2. Keep it tight: front-load the point; mind mobile truncation (~40 chars shows).
3. Preview text complements (doesn't repeat) the subject and extends the hook.
4. Honesty: the subject must match the email's content (CAN-SPAM) - no fake "Re:"/"Fwd:" or false promises.
5. Deliverability: avoid spam-trigger words, ALL CAPS, and !!! (spam-trigger-guard).

Output

• A ranked set of subject-line options (+ preview text), labelled by angle, ready to A/B test.

Guardrails

• No deceptive subjects (law + trust). No spammy formatting.
• Don't promise what the email doesn't deliver.