Best Stalwart Mail Server Alternatives in 2026

Looking for something different? Here are the top alternatives to Stalwart Mail Server, including direct competitors and similar tools.

Why Look for Stalwart Mail Server Alternatives?

While Stalwart Mail Server is well-rated (7.0/10), it might not be the perfect fit for every team. Common reasons users switch: being relatively new, it has a smaller community and less third-party documentation than established servers like postfix/dovecot, being a newer project, it has a smaller community and less third-party documentation than established servers.. Explore the alternatives below to find the best match for your specific needs and budget.

S

Stalwart Mail Server

OPEN SRC

7.0(0)

All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features

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VLC Media Player

Free media player that plays almost any audio or video format

MariaDB

Community-developed MySQL fork with enhanced features

MySQL

Popular open-source relational database for web applications

Apache HTTP Server

Venerable web server powering websites since the early internet

Nginx

High-performance web server and reverse proxy

Prometheus

Open-source monitoring and alerting toolkit for cloud-native

Elasticsearch

Distributed search and analytics engine for all data types

PostgreSQL

Advanced open-source relational database system

MongoDB

Document database for modern application development

Redis

In-memory data store for caching and real-time applications

Bitbucket

Git repository hosting with built-in CI/CD for teams

CircleCI

Cloud-native CI/CD platform for automated software delivery

Synapse

Server for [Matrix](https://matrix.org/), an open standard for decentralized persistent communication