Communication - Email - Complete Solutions
18 applications, ranked by GitHub stars in the dataset.
docker-mailserver
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database.
Replaces Amazon SES, Fastmail, Gmail, and 2 more
19,710 stars Active
26 Oct 2026 v16.0.1
Postal
Complete and fully featured mail server for use by websites & web servers.
Replaces Amazon SES, Mailgun, SendGrid
16,910 stars Active
1 Oct 2026 3.3.7
Stalwart Mail Server
All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features.
15,562 stars Active
28 Oct 2026 v1.0.1
Mail-in-a-Box
Turns any Ubuntu server into a fully functional mail server with one command.
Replaces Gmail, Outlook.com, Proton Mail
15,448 stars Active
22 Oct 2026 v77
Mailcow
Mail server suite based on Dovecot, Postfix and other software, that provides a modern Web UI for administration.
Replaces Amazon SES, Fastmail, Gmail, and 5 more
13,722 stars Active
21 Oct 2026 2026-10
Mailu
Simple yet full-featured mail server as a set of Docker images.
7,593 stars Active
31 Oct 2026 2024.06.67
SimpleLogin
Email alias solution to protect your email address. Comes with browser extensions and mobile apps.
7,104 stars Active
30 Oct 2026 v4.83.2
Maddy Mail Server
All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon.
6,116 stars Active
31 Oct 2026 v0.9.6
Mox
Complete e-mail solution with IMAP4, SMTP, SPF, DKIM, DMARC, MTA-STS, DANE and DNSSEC, reputation-based and content-based junk filtering, Internationalization (IDNA), automatic TLS with ACME and Let's Encrypt, account autoconfiguration, and webmail.
5,922 stars Active
27 Oct 2026 v0.0.17
AnonAddy
Email forwarding service for creating aliases.
4,930 stars Active
29 Oct 2026 v1.7.4
Modoboa
Mail hosting and management platform including a modern and simplified web user interface.
3,544 stars Active
30 Oct 2026 2.12.0
wildduck
Scalable no-SPOF IMAP/POP3 mail server.
2,113 stars Active
30 Oct 2026 v1.55.2
iRedMail
Full-featured mail server solution based on Postfix and Dovecot.
1,849 stars Active
28 Oct 2026
Forward Email
Privacy-focused encrypted email for everyone. All-in-one.
1,695 stars Active
29 Oct 2026 v2.18.12
DebOps
Your Debian-based data center in a box. A set of general-purpose Ansible roles that can be used to manage Debian or Ubuntu hosts.
1,426 stars Active
30 Oct 2026 v3.3.2
Simple NixOS Mailserver
Complete mailserver solution leveraging the Nix Ecosystem.
320 stars Active
21 Oct 2026 v2.3.0
b1gMail
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.
No repository figures recorded
Inboxen
Lets you have an infinite number of unique inboxes.
No repository figures recorded
