Keep subjects short, natural case, no emojis, no sales words.
Patterns to test
- Personalized:
firstName`, quick question` | `Question about `property - Short:
roof plan?|winter prep| “firstName, quick one - Connection:
Found you viasource| `Working with managers in `city - Curiosity: “firstName
, odd question|quick roof note - Useful:
reduce roof costs|prevent leak season
Safety checks
- Avoid ALL CAPS, punctuation spam, and words like “free/discount/sale”
- Do not use links or tracking in Email 1
- Test one variable at a time and let each run to 50–100 sends
Length & personalization
- Aim for ~30–50 characters so it fits on mobile
- Use light tokens where available:
firstName,address,company,city - Focus on an outcome or pain (e.g., leak prevention, winter prep)