AI Email Subject Lines: Use Them Without Losing Your Voice
How to use AI to generate email subject lines that are on-brand and effective - with a reliable workflow.
8 min read
AI is great at generating many subject line options quickly. The skill is filtering and polishing them so they sound like you. Here's a workflow that works.
A reliable workflow
- Give the AI your audience, the email's value, and your brand voice.
- Ask for 10-15 varied options across different angles.
- Shortlist the ones that feel 'on voice'.
- Edit the shortlist by hand for clarity and honesty.
- Test a couple against each other if volume allows.
What to watch out for
Beware of hype-words and clickbait that don't fit UK sensibilities. AI often over-uses exclamation and superlatives. Strip these back unless they genuinely fit your brand.
Keep the promise honest
The subject line must match the email content. AI can suggest a clever hook that overpromises - your review keeps it truthful and on-brand.