Self-hosted projects tagged “SMTP”
15 open source projects with this tag
15 open source projects with this tag
15 services found

High-performance newsletter and mailing list manager
Self-hosted newsletter and email list manager with templating, segmentation, campaigns, and PostgreSQL-backed performance.


A self-hosted mail delivery platform for applications
Open-source SMTP delivery platform with web UI, HTTP API, and message tracking for sending transactional email from your own infrastructure.


Send notifications to dozens of services from one interface
A notification gateway that routes alerts to 60+ services via CLI, Python API, and webhooks, with a unified URL syntax for configuration.

A mail server in a box with a modern admin panel.
Turn a fresh Ubuntu server into a complete mail server with webmail, DNS, spam filtering, automatic TLS, and an easy-to-use admin control panel.


Dockerized mail server suite with a modern admin UI
All-in-one, Docker-based email server stack with SMTP/IMAP, anti-spam, web UI administration, DKIM, and automated TLS via ACME.

All-in-one secure mail server with modern spam filtering
Stalwart is an all-in-one mail server (SMTP/IMAP/JMAP) with built-in anti-spam/DMARC, web admin UI, and flexible routing for running your own email infrastructure.

Docker-based mail server stack with a modern admin UI
Mailu is an all-in-one email server stack (SMTP/IMAP/webmail) packaged for Docker, with anti-spam/AV, DKIM/DMARC support, and a web admin interface for domains and mailboxes.

Browser-based IMAP webmail with a plugin-driven UI
Self-hosted webmail client for IMAP accounts with address book, message search, identities, and an extensible plugin/skin system.
Modern all-in-one email server with a built-in admin web UI
All-in-one SMTP/IMAP mail server with web admin, spam filtering, DKIM/DMARC, and automatic TLS via ACME—designed for simpler, safer email hosting.


Open-source email aliases and forwarding for privacy.
Create unlimited email aliases and forward mail to your inbox to reduce spam, protect identity, and control who can reach you.

Open source help desk built on shared mailboxes
FreeScout is a lightweight help desk for managing shared email inboxes with ticketing, assignments, collision detection, and extensible modules.

Self-hosted email newsletter and marketing automation
Keila is a self-hosted newsletter tool for creating campaigns, managing audiences, and automating email sends with templates, segmentation, and analytics.


Modern, lightweight webmail client for IMAP and SMTP
Fast, privacy-friendly webmail client with IMAP/SMTP, Sieve filters, PGP support, and a responsive UI. A community-driven continuation of RainLoop.

A lightweight webmail client for IMAP accounts
Cypht is a lightweight, extensible webmail client that aggregates IMAP mailboxes and provides a fast, minimal UI with optional modules such as SMTP sending and Sieve filtering.

High-performance IMAP and POP3 server for Linux/Unix
Dovecot is an IMAP/POP3 mail server focused on performance, security, and standards compliance, commonly used for mailbox access in Postfix/Exim-based email stacks.