Self-hosted projects tagged “SMTP”
40 open source projects with this tag
40 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.
DocuSeal
Open-source platform for filling and signing documents online
Self-hostable DocuSign alternative to create fillable forms and collect legally binding eSignatures with API and webhooks.
Postal
Open source mail delivery platform for inbound and outbound email
Postal is an open source mail delivery platform for sending and receiving email, with SMTP support, web-based management, and tools for running your own SendGrid-style service.
Mail-in-a-Box
Turnkey email server with webmail, DNS, TLS, and admin panel
Mail-in-a-Box is a one-click mail server appliance for Ubuntu, bundling SMTP/IMAP, webmail, DNS, TLS automation, backups, and an admin control panel.
Stalwart Mail Server
All-in-one mail and collaboration server for modern and legacy protocols
All-in-one open-source mail and collaboration server with SMTP, IMAP, JMAP, CalDAV, CardDAV, and WebDAV, plus integrated anti-spam and phishing protection.
mailcow: dockerized
Docker-based email server suite with a web admin interface
Mailcow is a dockerized mail server suite providing SMTP/IMAP, webmail, anti-spam/anti-virus, and domain/mailbox administration via a unified web UI.
Mailu
Docker-based mail server with webmail and admin interface
Mailu is a full-featured mail server distributed as Docker images, providing SMTP/IMAP/POP3, webmail, administration UI, and built-in security and anti-spam features.
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.
Mox
Modern, secure, all-in-one mail server for self-hosted email
All-in-one secure mail server with SMTP, IMAP, webmail, automatic TLS (ACME), and built-in SPF/DKIM/DMARC plus junk filtering for low-maintenance domains.
Haraka
High-performance, extensible SMTP server built on Node.js
Haraka is a fast, event-driven SMTP server for receiving, filtering, and relaying email, featuring a modular plugin architecture for customization at scale.
Modoboa
Mail hosting and management platform with web UI and webmail
Modoboa is an open source mail server management platform with a modern web UI, integrating Postfix and Dovecot with admin tools, webmail, calendar, and address book.
Keila
Open-source email newsletter and campaign management platform
Keila is an open-source newsletter tool for creating email campaigns, managing contacts and segments, building signup forms, and sending via SMTP or email providers.
emailwiz
Bash-based installer that deploys a secure Debian/Ubuntu mail server stack.
A Bash script that auto-implements a full mail server (Postfix, Dovecot, DKIM, SpamAssassin) with TLS and PAM-based logins on Debian/Ubuntu.
SOGo
Scalable groupware server with webmail, calendars, and contacts
Open source groupware suite providing webmail, calendaring, address books, and shared resources via open standards like IMAP, CalDAV, and CardDAV.
iRedMail
Open-source full-featured mail server stack for Linux/BSD
Automated open-source mail server installer bundling Postfix, Dovecot, webmail, anti-spam/antivirus and LDAP/SQL backends for mainstream Linux/BSD.
SnappyMail
Lightweight web-based email client for IMAP accounts
SnappyMail is a fast, modern webmail client (RainLoop fork) focused on performance, privacy, and secure IMAP access with optional PGP support and admin controls.
Nextcloud Mail
Webmail client app for Nextcloud (IMAP/SMTP)
Nextcloud Mail is a webmail app that connects to IMAP/SMTP accounts, offering a unified inbox and deep integration with other Nextcloud apps like Contacts and Calendar.
OpenTrashmail
Self-hosted disposable email inbox with web UI, API, RSS, webhooks
OpenTrashmail is a standalone disposable email (“trashmail”) service with its own SMTP server, offering a web UI plus JSON API, RSS feeds, and webhooks for received mail.
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 isolation.
DavMail
Exchange and Microsoft 365 gateway for standard mail and PIM protocols
DavMail is a Java gateway that lets standard clients use IMAP/POP/SMTP, CalDAV, CardDAV, and LDAP with Microsoft Exchange and Microsoft 365 via OWA/EWS.
Nortix Mail
Disposable email server with a simple self-hosted setup
Self-hosted disposable email server for creating temporary addresses to reduce spam and protect privacy, with an optional TLS setup and a web UI.
Frigate-Notify
Notification bridge for standalone Frigate NVR via MQTT or API
Lightweight Go service that forwards events from a standalone Frigate NVR to Discord, Matrix, SMTP, webhooks and many services (via Apprise). Supports MQTT or direct API and Docker.
Piler
Open-source email archiving and eDiscovery platform
Scalable email archiving solution with tamper-evident retention, full-text search, legal hold, deduplication and access controls for compliance.
UniFi Voucher Site
Generate and manage UniFi guest WiFi vouchers
Web app to create, print, email, and manage UniFi guest vouchers with OIDC support, kiosk mode, PDF/thermal printing, and a REST API. Deployable via Docker.
MedAssist
Self-hosted medication inventory, reminders and travel planner
Node.js web app to track medication inventory, send SMTP reminders, and generate travel medication lists. Runs with SQLite and supports Docker deployment.
Geoposler
Dockerized email campaign manager with SMTP and MySQL
Dockerized email campaign manager for creating templates, managing contacts, and sending HTML emails via configurable SMTP; built with TypeScript, Node.js, React, and MySQL.
BBYEN
Replacement for YouTube upload email notifications
Service that checks your YouTube subscriptions and sends email notifications for new uploads using the YouTube Data API, RSS feeds, and SMTP.
Courier Mail Server (Courier MTA)
Integrated mail server suite with SMTP, IMAP, POP3 and webmail
Courier is an integrated mail server suite providing ESMTP (MTA), IMAP, POP3, webmail, and mailing lists with optional LDAP/MySQL/PostgreSQL-backed virtual accounts.
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.
E-MailRelay
Lightweight SMTP store-and-forward MTA with optional POP3 access
E-MailRelay is a lightweight SMTP relay/store-and-forward mail server with optional POP3 access to spooled messages, designed for simple, scriptable mail handling.
