Self-hosted projects using SMTP
17 self hosted projects using this technologyEmail
17 services found
docker-mailserver
Containerized mail server stack for SMTP and IMAP with anti-spam
Production-ready mail server stack in a Docker container with SMTP, IMAP/POP3, LDAP auth, anti-spam/AV, DKIM/DMARC, and optional OAuth2 support.
Maddy Mail Server
Composable all-in-one SMTP/IMAP mail server with security features
Go-based, modular mail server implementing SMTP/LMTP/IMAP with built-in DKIM/SPF/DMARC, storage backends (SQLite/Postgres/S3), Prometheus metrics and Docker support.
Cypht
Open-source webmail and RSS aggregator built from modular plugin sets.
Cypht is an open-source PHP/JavaScript webmail and RSS aggregator built from modular plugin sets, unifying multiple accounts with search and server-side filters.
Hoodik
Self-hosted end-to-end encrypted cloud storage drive
Lightweight self-hosted cloud storage with end-to-end encryption, chunked file transfer, private search, and secure share links via a web UI.
Django-CRM
Open-source CRM and task management built on Django Admin
Django-CRM is a Django-based open-source CRM providing contact & lead management, deal tracking, email marketing, task/project management, and built-in analytics.
Hyvor Relay
Open-source, self-hosted Email API for developers
AGPL-3.0 open-source email API for developers that can be self-hosted; supports SMTP sending, webhooks, DNS automation, observability, multi-tenancy, and project isolatio...
HelpRealm
Lightweight SaaS support ticket system
Open-source, Laravel-based support ticket system for handling customer requests via email, web forms and a REST API; suited for freelancers and small teams.
Zimbra Collaboration
Enterprise email, calendar, contacts, and collaboration suite
Self-hosted enterprise collaboration suite providing email, webmail, calendaring, contacts, and administration for organizations.
Citadel
Groupware server with email, calendaring, contacts, and web access
Citadel is an open source groupware and messaging server providing email, calendars, contacts, and a web interface with room-based collaboration.
HiveDAV
Curlable free/busy scheduler with CalDAV integration
A lightweight, curl-first free/busy scheduler that syncs availability from a CalDAV calendar and can send iCal booking invites via SMTP.
chasquid
Simple and secure SMTP mail transfer agent (MTA)
chasquid is a minimalist SMTP server (MTA) for individuals and small groups, focused on secure defaults, easy configuration, and straightforward operation.
Schleuder
OpenPGP-enabled mailing list manager with remailing
Schleuder is an OpenPGP-enabled mailing list manager that encrypts list mail and supports remailing, allowing subscribers and non-subscribers to exchange secure emails vi...
b1gMail
Web-based email and collaboration suite for running hosted email services
Open-source webmail and groupware offering email, contacts, calendar, cloud drive, tasks, notes and an admin control panel for multi-tenant email services.
OpenSMTPD
Secure, lightweight SMTP server implementation compliant with RFC 5321
OpenSMTPD is an open-source, minimal SMTP daemon from the OpenBSD project providing an RFC-compliant MTA with privilege separation, table backends, filters and TLS suppor...
memEx
Structured personal knowledge base inspired by Zettelkasten and Org mode
Self-hosted, multi-user personal knowledge base for notes, linked contexts, and process pipelines, with backlinks and per-item privacy controls.
SquirrelMail
Browser-based IMAP webmail client written in PHP
Lightweight PHP webmail client for IMAP/SMTP servers, offering a simple interface, plugin extensibility, and broad compatibility with standard mail backends.
Dovel
Simple Go-based SMTP server for receiving and sending mail
Lightweight SMTP server written in Go that receives and sends email via a single JSON config and executable hooks; supports per-user DKIM and TLS.