7 posts tagged with "jmap"

After more than three months of focused work, we are thrilled to announce the release of Stalwart v0.16. This is easily the most ambitious release we have ever shipped, with literally hundreds of new features, improvements, and fixes across every corner of the server.

We will be upfront about something: v0.16 will feel like a new product on first contact. Several long-standing concepts have been reworked, a few have been removed, and many new ones have been introduced. This was a deliberate choice. Stalwart has been under continuous development for nearly five years, and both the feature set and the user base have grown far beyond what the original configuration and management layer was designed for. Rather than keep patching around those limits, we took the opportunity to rebuild the foundation. The payoff is a much cleaner architecture and a long list of features that were simply not implementable before, many of which had been sitting on the community wishlist for years.

Let's walk through the highlights.

After four years of development, we’re thrilled to announce a major milestone in the evolution of Stalwart — the full implementation of JMAP for Calendars, Contacts, File Storage, and Sharing. With this release, Stalwart becomes the first JMAP server to fully support the entire family of JMAP collaboration protocols, marking a new era for open, efficient, and elegant groupware.

Since we officially started developing Stalwart on September 4th, 2021, we've come a long way in establishing a powerful and versatile open-source mail and collaboration server. The very first commit, made on October 3rd, 2021, was to the mail-parser Rust crate, a fundamental component upon which Stalwart was built. It set the tone for our relentless pursuit of secure, reliable, and performant software.

We’re happy to announce that Stalwart Labs has been awarded a new grant from the NGI0 Core Fund, established by NLnet with financial support from the European Commission’s Next Generation Internet programme. This funding will support the development of essential collaboration features, marking a major milestone in Stalwart’s evolution from a modern email server into a complete, self-hosted collaboration platform.

This is the second grant Stalwart has received from NLnet, following the initial support we received in March 2023 from the NGI0 Entrust Fund. We are deeply grateful to the NLnet Foundation for their continued trust in our mission to modernize and decentralize communication infrastructure.

We're thrilled to announce the release of Stalwart Mail Server, our biggest leap forward yet. This version combines the powerful capabilities of Stalwart JMAP, Stalwart IMAP, and Stalwart SMTP servers into one easy-to-install binary, offering you a unified, highly efficient mail server solution.

Sieve (RFC5228) is a scripting language for filtering email messages at or around the time of final delivery. It is suitable for running on a mail server where users may not be allowed to execute arbitrary programs as it has no user-controlled loops or the ability to run external programs. Sieve is a data-driven programming language, similar to earlier email filtering languages such as procmail and maildrop, and earlier line-oriented languages such as sed and AWK: it specifies conditions to match and actions to take on matching.

We are happy to announce Stalwart JMAP, an open-source JSON Meta Application Protocol server written in Rust that aims to be scalable, robust and secure.