DavMail

Is DavMail actively maintained?

Over the last 11 months the project absorbed 568 commits, of which 187 arrived in the most recent quarter — roughly 62 commits a month.

No tagged releases are published, so there is no stable version to pin to — you would deploy from the default branch or a container image built from it.

Note that DavMail depends on a third-party service to work fully. It is self-hosted, but not self-contained: if that external service changes its terms or disappears, your instance is affected.

DavMail ranks #3 of 3 tracked communication - email - mail delivery agents projects. Several better-maintained options exist in the same category — they are listed below.

What DavMail actually does

DavMail acts as a local gateway translating standard protocols like POP, IMAP, SMTP, CalDAV, CardDAV, and LDAP into formats compatible with Microsoft Exchange servers. This allows users to connect their preferred desktop or mobile mail and calendar clients to corporate Exchange environments, including through Outlook Web Access. It bridges the gap between proprietary server setups and client-side applications that rely on open standards.

Best fit: Users who are constrained to an Exchange environment but want to use independent mail and calendar clients on their own devices.

Worth knowing: Relying on a translation gateway introduces an additional point of failure and complexity when enterprise update cycles alter OWA or Exchange endpoints.

Deployment notes

As a Java application, it typically runs as a lightweight background service or container, though you will need to allocate sufficient JVM heap memory and manage persistent configuration files.

Links

• Official website
• Source code