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milter

3 posts with the tag “milter”

MTA Hooks at the IETF

- 7 min read
Mauro D.
Mauro D.
Project Maintainer

Two years ago we shipped MTA Hooks in Stalwart Mail Server as a modern, HTTP-based alternative to Milter. In the time since, it has gone from a Stalwart feature to a protocol used across thousands of deployments worldwide, with implementations being built by third parties and interest from major players in the mail filtering ecosystem. We are now taking the next step: standardizing MTA Hooks at the IETF, so that it stops being “the Stalwart way of doing things” and becomes an open protocol that any MTA and any filter can speak.

Introducing Milter Support to Stalwart SMTP

- 1 min read
Mauro D.
Mauro D.
Project Maintainer

E-mail filtering is a crucial part of any modern mail server and, for this reason, we’re excited to announce the addition of Milter support to Stalwart Mail Server. This update, driven by user feedback, allows the integration of both new and old Milter filters, supporting versions 2 and 6, which expands the server’s capabilities in inspecting, filtering, or modifying emails during processing.