High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.
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Updated
Oct 2, 2026 - Go
High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.
BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr
Golang package that generates clean, responsive HTML e-mails for sending transactional mail
Mini SMTP server written in golang
Disposable webmail server (similar to Mailinator) with built in SMTP, POP3, RESTful servers; no DB required.
A third-party, open-source ProtonMail CardDAV, IMAP and SMTP bridge
✅ A Go library for email verification without sending any emails.
📧 Easy to use, yet comprehensive library for sending mails with Go
Buggregator — a single-binary debugging server for PHP. Captures exceptions, dumps, emails, profiling, logs in real-time UI. Sentry, Ray, VarDumper, SMTP, Monolog, Inspector, XHProf and more.
SMTP (email) server with a focus on simplicity, security, and ease of operation [mirror]
Golang package for send email. Support keep alive connection, TLS and SSL. Easy for bulk SMTP.
Self-hosted server for the ProtonMail client
A simple program that listens for SMTP and forwards all incoming Email messages to Telegram
🐳 A bring-your-own-SMTP-server mail relay with REST API and web UI
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