Short subject
A subject line of three words or fewer gets more replies than a sentence-length subject
Verdict: inconclusive (simulated)
- Sentence subject
- 6 of 73 (8%)
- Three-word subject
- 1 of 79 (1%)
- Chance B wins
- 2%
- Minimum sample
- 80 emails per version
Specific ask
Asking for a 20-minute call on a named day gets more positive replies than an open-ended ask
Verdict: inconclusive (simulated)
- Open ask
- 1 of 73 (1%)
- Named-day ask
- 4 of 74 (5%)
- Chance B wins
- 90%
- Minimum sample
- 80 emails per version
Evidence line
Emails whose first line cites a public signal about the company get more positive replies than a plain pitch
Verdict: inconclusive (simulated)
- Plain pitch
- 2 of 109 (2%)
- Evidence first line
- 3 of 117 (3%)
- Chance B wins
- 63%
- Minimum sample
- 80 emails per version