Apache James

james.apache.org · checked 5 Oct 2026

#19 · Email Server Software #22 · Mail Server Software

Visit james.apache.org ↗ Alternatives Apache James vs Maddy Mail Server

How it plugs in

—Public API

NoOpen source

YesFree tier

Signal on Email Server Software5.9#19 of 33

Apache James is a modular mail server running on the JVM.

Pricing

Apache JamesOpen source mail server · download available at no costFree

As apache.org lists them, checked 5 Oct 2026.

Near it

All alternatives →

Runs on

Web
Windows
Mac
Linux
iOS
Android

Facts

Website: james.apache.org
Price: Free tier
Free trial: Not stated
Administration: Administration options include JMX, REST, and command line.
Community: The project describes itself as an open source, all volunteer project and invites users and developers to join its community.
Customization: Users can assemble components and customize email filtering and routing with the Mailet Container.
Java runtime: The site says James is built with Java 11 and runs on Java RE 11.
License: The project states that contributions are made under the Apache License 2.0.
Protocols: Supported email protocols listed include SMTP, LMTP, POP3, IMAP, ManageSieve, and JMAP.
Scale: The distributed server uses Cassandra, OpenSearch, RabbitMQ, and an S3 API and is intended for large scale deployments where scalability is required.
Security: The download page instructs users to verify downloaded files using signatures and provides SHA-512 and PGP links for server binaries.
Storage: Listed storage implementations include Cassandra, PostgreSQL, HSQLDB, MySQL, and OpenSearch.
Support: The project lists companies offering professional support, including consultancy, feature development, and project integration.
Target use: The roadmap identifies a distributed horizontally scalable mail server and a standalone single server version as goals.

On these boards

Built Apache James?

Claim the page, then edit your card yourself from your member desk: its name, words, logo, screenshots, plans and links. Your desk shows how many readers open it.

Claim Apache James