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  Stalwart support is moving to support.stalw.art - learn more at https://stalw.art/blog/support-portal/

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  Most internet mail filtering still relies on Milter, a 25-year-old binary protocol with no formal specification. We think it's time for an open standard. Help us make MTA Hooks an IETF RFC. Learn more at https://stalw.art/blog/mta-hooks-ietf/

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  Meet Vandelay: a one-shot JMAP account migration and backup tool, and the first piece of our zero-downtime migration story. Lean more at https://stalw.art/blog/jmap-account-migration

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  🎉 Zero-downtime upgrades to Stalwart are here! Released today, the migration proxy makes account-by-account moves to Stalwart possible with no scheduled maintenance window. https://stalw.art/blog/migration-proxy/

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  The road to Stalwart 1.0 starts with a clean slate: every open bug report we have has been fixed. Next up: finalizing the database schema and a focused performance pass. Targeting 1.0 this year. https://stalw.art/blog/road-to-stalwart-1-0

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  🔐 DKIM2 and DMARCbis have landed, and Stalwart speaks them first! Learn more at https://stalw.art/blog/dkim2-dmarcbis/

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  AI is making Stalwart better, but it is not replacing anyone. Learn how we use AI at Stalwart, and where we refuse to at https://stalw.art/blog/how-we-use-ai

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  Introducing Sievepad: write and debug Sieve scripts in the browser. Learn more at https://stalw.art/blog/sievepad/

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  🚀 Stalwart v1.0 is out: the fastest mail server on the planet, up to 234x faster than Dovecot. https://stalw.art/blog/stalwart-1-0

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  🎉 Big update! With CalDAV, CardDAV & WebDAV support in Stalwart v0.12, you can now self-host calendars, contacts, and files. No third-party tools required! Learn more at https://stalw.art/blog/collaboration

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  📨 The Future of Stalwart: Curious about our Webmail plans and what's next on our roadmap? Read our latest blog for all the exciting details at https://stalw.art/blog/roadmap #Email #Webmail #AutRustAutNihil

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  🚀 Millions of messages a day? No problem! Stalwart MTA now features virtual queues and strategy-based routing for smarter, faster outbound mail. Also, MTA Hooks is heading to #IETF123 for standardization talks! Learn more at https://stalw.art/blog/virtual-queues #MTA #Email #IETF

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  🔒 Stalwart joins GitHub's Open Source Secure Fund! Learn how the program is helping us strengthen our defenses and improve performance at https://stalw.art/blog/github-ossf #GitHub #OSSF #security

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  @ricardo See this thread https://github.com/stalwartlabs/stalwart/issues/253 - If someone contributes a CI job to compile BSD from a Github runner, it will be officially supported.

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  🛡️ We hired hackers to break Stalwart. They found two DoS vulnerabilities. We patched them in hours. Your mail server is now harder to crack than ever. See what they found at https://stalw.art/blog/security-audit-2025

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  🚀 Stalwart now speaks all of JMAP: Mail, Calendars, Contacts, Files & Sharing. The first server to do it. A new era of open collaboration begins! Full story at https://stalw.art/blog/jmap-collaboration

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  Stalwart v0.15 is out. No flashy features. No big rewrites. Just marginal gains that add up to real performance wins. Learn more at https://stalw.art/blog/marginal-gains

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  How do you run Gmail-scale email with open source? Come find out, then grab waffles 🧇 — Stalwart @ #FOSDEM, Sat Jan 31, 16:00 — More info at https://fosdem.org/2026/schedule/event/FP8EFX-scaling-email/

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  Stalwart v0.16 is out! 🎉 Hundreds of new features and fixes, a brand-new WebUI, a new CLI, OIDC sign-in, automated DNS and DKIM management, masked emails, and a lot more. Learn more at https://stalw.art/blog/stalwart-0-16/