Self-Hosted Email Solutions: 45 Open-Source Apps
Best for your setup
Homelab Novice
Wants it running tonight, with one command.
SimpleLogin7.0k
SimpleLogin is an email aliasing service that helps protect online identity by routing mail through aliases.
- Live demo
- Documented
See allDefault rank #6
79/100 fitHow well this app matches homelab novices, 0 to 100
Homelab Expert
Runs a stack already and wants it to plug in.
Stalwart Mail Server15.1k
Stalwart is an open-source mail and collaboration server with support for IMAP, JMAP, SMTP, CalDAV, CardDAV, and WebDAV.
- Several SSO sign-in methods
- REST or GraphQL API
See all86/100 fitHow well this app matches homelab experts, 0 to 100
Homelab Hacker
Wants control: APIs, scripts and many ways to run it.
DebOps1.4k
DebOps is a set of Ansible roles and playbooks for managing Debian or Ubuntu hosts and deploying related infrastructure in a controlled way.
- CLI or plugin support
- Many ways to install
See allDefault rank #13
85/100 fitHow well this app matches homelab hackers, 0 to 100
45 projects
Mailu
7.6k
Mailu is a full-featured mail server provided as a set of Docker images.
Email SolutionsPermissive LicenseMail Transfer Agents+3
10 ContainersFully FOSS
Mailcow
13.6k
mailcow is a dockerized mail server suite for self-hosted email management.
Email SolutionsCopyleft LicenseGroupware Suites+1
18 Containers
docker-mailserver
19.5k
A production-ready containerized mail server with SMTP, IMAP, LDAP, anti-spam, and anti-virus services.
Email SolutionsPermissive LicenseMail Transfer Agents+2
Stalwart Mail Server
15.1k
Stalwart is an open-source mail and collaboration server with support for IMAP, JMAP, SMTP, CalDAV, CardDAV, and WebDAV.
Email SolutionsMail Transfer AgentsCalendar and Contacts+2
Haraka
5.6k
Haraka is a modular Node.js SMTP server for high-throughput mail transfer and filtering.
Mail Transfer AgentsPermissive LicenseEmail Solutions+1
SimpleLogin
7.0k
SimpleLogin is an email aliasing service that helps protect online identity by routing mail through aliases.
Email SolutionsSelf Hosting SolutionsPermissive License
Mail-in-a-Box
15.4k
A one-click, easy-to-deploy mail server appliance for self-hosting email on Ubuntu.
Email SolutionsWebmail ClientsMail Transfer Agents+5
Postal
16.9k
Postal is a complete, self-hosted mail server for websites and web servers.
Email SolutionsPermissive LicenseMail Transfer Agents+2
Mox
5.9k
Mox is an open source self-hosted email server with SMTP, IMAP, webmail, and a web admin interface.
Email SolutionsMail Transfer AgentsMail Delivery Agents+3
FreeScout
4.6k
FreeScout is a free, self-hosted help desk and shared inbox alternative to Zendesk and Help Scout built with PHP/Laravel.
Ticketing SystemsCopyleft LicenseCRM Systems+2
AliasVault
3.2k
AliasVault is a privacy-first password and email alias manager with end-to-end encryption, built-in email aliasing, and support for self-hosting or a cloud version.
Password ManagersPermissive LicenseEmail Solutions+1
7 Containers
Maddy Mail Server
6.1k
A composable all-in-one mail server that handles SMTP sending and receiving, IMAP storage, and related email security protocols.
Email SolutionsMail Transfer AgentsMail Delivery Agents+2
DebOps
1.4k
DebOps is a set of Ansible roles and playbooks for managing Debian or Ubuntu hosts and deploying related infrastructure in a controlled way.
Email SolutionsCopyleft LicenseAutomation Tools+2
Single ContainerFully FOSS
wildduck
2.1k
A scalable no-SPOF IMAP/POP3 mail server that stores data in a distributed MongoDB backend.
Email SolutionsMail Transfer AgentsSelf Hosting Solutions+2
3 Containers
Modoboa
3.5k
Modoboa is a mail hosting and management platform with a web user interface, administration panel, and webmail.
Email SolutionsPermissive LicenseSelf Hosting Solutions+4
BillionMail
15.9k
BillionMail is an open-source mail server and email marketing platform for sending newsletters, promotional emails, and transactional messages.
Mailing ListsEmail SolutionsMail Transfer Agents+2
SOGo
2.2k
SOGo is a free and open source groupware solution.
Groupware SuitesCalendar and ContactsEmail Solutions+3
Plunk
5.5k
Plunk is an open-source email platform for sending transactional emails, campaigns, and automations from self-hosted applications.
Email SolutionsMailing ListsAutomation Tools+2
Cloud Required
AnonAddy
4.9k
Self-hostable anonymous email forwarding service for creating aliases and forwarding mail to your real inbox.
Email SolutionsPermissive LicenseMail Transfer Agents+1
Cyrus IMAP
652
An IMAP server for mail access, with support for email, contacts, calendar, and related messaging protocols.
Mail Delivery AgentsEmail SolutionsMail Transfer Agents+2
Peergos
2.5k
Peergos is a peer-to-peer encrypted filesystem and private web platform with secure sharing, messaging, encrypted email, and social networking.
File SynchronizationCopyleft LicenseFile & Object Storage+5
iRedMail
1.8k
iRedMail is a full-featured mail server solution for deploying self-hosted email services.
Email SolutionsCopyleft LicenseMail Transfer Agents+2
deltachat-android
1.8k
Android client for Delta Chat, an email-based messaging app.
Email SolutionsCustom Communications
Piler
352
An open source email archival application with search, retention, legal hold, and compliance-oriented email management features.
Digital ArchivingEmail SolutionsSelf Hosting Solutions+2
4 ContainersFully FOSS
Open Archiver
2.4k
Open Archiver is a self-hosted platform for archiving, storing, indexing, and searching email from major providers and mail formats.
Digital ArchivingCopyleft LicenseEmail Solutions+3
mail-archiver
2.2k
An email archiving system for storing, searching, importing, restoring, and exporting mail from multiple accounts.
Digital ArchivingEmail SolutionsSelf Hosting Solutions+2
aerion
977
Aerion is an open source lightweight e-mail client for desktop platforms.
Email SolutionsCalendar and ContactsFully FOSS
Fully FOSS
OpenTrashmail
965
Open Trashmail is a self-hosted trashmail service for receiving emails through a web UI, JSON API, RSS feeds, and custom webhooks.
Mail Transfer AgentsEmail SolutionsSelf Hosting Solutions+2
penguin-mail
416
Penguin Mail is a Linux mail and calendar app written in Rust that supports Gmail, Microsoft, IMAP, POP3, contacts, calendars, and message security features.
Email SolutionsCalendar and ContactsFully FOSS+1
Fully FOSS
LibreServer
54
LibreServer is a small server system for running personal internet services independently for you, your friends, or your family.
Self Hosting SolutionsEmail SolutionsWikis+3
Simple NixOS Mailserver
317
Complete mailserver solution leveraging the Nix Ecosystem.
Email SolutionsCopyleft LicenseMail Transfer Agents+2
emailwiz
2.2k
A setup script for installing and configuring a self-hosted email server on Debian or Ubuntu.
Email SolutionsMail Transfer AgentsMail Delivery Agents+3
Citadel
Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more.
Groupware SuitesEmail SolutionsCalendar and Contacts+5
Courier MTA
Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing list, basic web-based calendaring and scheduling services.
Mail Transfer AgentsCopyleft LicenseEmail Solutions+4
Dovel
SMTP server that sends and receives emails according to a simple configuration file, with an optional web interface that you can use to browse your emails.
Email SolutionsCopyleft LicenseMail Transfer Agents+2
Mailman
Manage electronic mail discussion and e-newsletter lists.
Mailing ListsCopyleft LicenseSelf Hosting Solutions+1
SquirrelMail
Another browser-based IMAP client.
Webmail ClientsCopyleft LicenseEmail Solutions+1
Zimbra Collaboration
Email, calendar, collaboration server with Web interface and lots of integrations.
Groupware SuitesEmail SolutionsCalendar and Contacts+2
Eonvelope
9
Email archiving software that allows you to preserve your emails for an indefinite long period of time.
Digital ArchivingCopyleft LicenseEmail Solutions+3
Fully FOSS
Inboxen
7
Lets you have an infinite number of unique inboxes.
Email SolutionsMail Delivery AgentsSelf Hosting Solutions+1
b1gMail
4
Complete email solution that runs on any webspace with PHP and MariaDB. It supports POP3 catchall mailboxes and can also integrate with Postfix or b1gMailServer if you're running your own server.
Email SolutionsSelf Hosting SolutionsCopyleft License
Forward Email
1.7k
Forward Email is a privacy-focused email service and open-source email platform with local development and server deployment tooling.
Email SolutionsCopyleft LicenseMail Transfer Agents+1
Source Available
Axigen
Turnkey messaging solution for small & micro businesses, integration projects or test environments.
Self Hosting SolutionsEmail SolutionsMail Transfer Agents+2
Poste.io
Full-featured solution for your Email server. Native implementation of last anti-SPAM methods, webmail and easy administration included. Free tier available.
Self Hosting SolutionsEmail SolutionsWebmail Clients+1
PrivMX WebMail
Web-based, end-to-end encrypted email platform that uses an independent PKI.
Custom CommunicationsEmail SolutionsWebmail Clients+2
Fully FOSS