Email and newsletters

SMTPkit alternatives

2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.

The full assessment →

The projects

Notifuse/notifuse2,051AGPL-3.0Self-hosted transactional and newsletter platform with editor, templating, and multiple sending providers.Open on GitHub Billionmail/BillionMail15,427AGPL-3.0Self-hosted mail server and email marketing suite for newsletters and transactional sending.Open on GitHub

What you give up either way

IP reputation and warmup history
High-volume deliverability tuning and deliverability analytics
Managed scaling and SLA-backed support
Built-in suppression lists and advanced spam feedback handling

An open-source project doing the core job proves a replacement is possible. It does not prove it matches SMTPkit, and it does not prove anyone has run it for a month. How we decide.