Head to head
dead-letter vs Posylai — AI Email Builder
Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.
No reviews yet
Convert .eml email exports to clean Markdown for RAG, LLM pipelines, and local knowledge bases
Full listingNo reviews yet
Build responsive HTML email campaigns from any brand website: design, QA, export.
Full listingThe short version
Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. Both score close on the safety scan (92 and 85 out of 100). Posylai — AI Email Builder is hosted and callable through the gateway; dead-letter runs on your own machine.
| dead-letter | Posylai — AI Email Builder | |
|---|---|---|
| User rating | No reviews yet | No reviews yet |
| Safety grade | A92/100 | A85/100 |
| Adoption | Growing | Growing |
| GitHub stars | 8 | 0 |
| Downloads / week | – | – |
| Runs where | Your machine (local) | Hosted (remote) |
| Gateway-ready | No | Yes |
| Tools | 4 | — |
| Write actions | — | — |
| Price per call | Free | Free |
| Licence | NOASSERTION | MIT |
| Last release | 2026-09-19 | 2026-09-10 |
| Category |