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.
24,112 stars Active
1 Nov 2026 nightly
Postal
Complete and fully featured mail server for use by websites & web servers.
16,912 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.
13,728 stars Active
21 Oct 2026 2026-10
Popular comparisons
The most-starred pairings among these replacements, ranked by combined GitHub stars in the dataset.