SendGrid
Transactional email API priced by volume, with deliverability managed by Twilio.
3 self-hosted replacements in this index, ranked by GitHub stars in the dataset.
Replacements
Listmonk
High performance newsletter and mailing list manager with a modern dashboard.
24,092 stars Active
31 Oct 2026 nightly
Postal
Complete and fully featured mail server for use by websites & web servers.
16,910 stars Active
1 Oct 2026 3.3.7
Mailcow
Mail server suite based on Dovecot, Postfix and other software, that provides a modern Web UI for administration.
13,722 stars Active
21 Oct 2026 2026-10
