useSend
74 · StableEmail sending service with an API, SMTP, domain management and campaigns, running on Amazon SES.
2 open source projects replace MailerSend, ranked by how safe each is to depend on.

Health and license are separate verdicts: a project can be well maintained and still not be open source.
| Project | Health | License | Stars |
|---|---|---|---|
| useSend | 74 · Stable | Free, share hosted changesAGPL-3.0 | 4.7k |
| Postal | 65 · Stable | Free to useMIT | 17k |
MailerSend is a paid email marketing product. See all open source email marketing tools, ranked the same way.
Scores last refreshed from GitHub on 9 October 2026. How we score.