https://peertube.watch/videos/watch/9ffbd2cd-150e-49f6-84a2-6ae9aedfb793 A few years ago, in Vienna, we founded grommunio. With the help of many tools, from Dovecot to Postfix and many more, a revolutionary open-source groupware was born. On top of the classic mail server stack, we implemented APIs and protocols of Microsoft's Exchange (and later MS 365 server) in free, opensource versions, one by one. This way, we built a "drop-in"-replacement for MS Exchange that supports unmodified, plugin-free clients with Outlook, Android, Apple and Web clients out of the box. It comes with chat, video conferences, file sync, administration, domain, user and account management and much more. Most recently, we implemented Exchange Web Services. In this talk, we will have a look at how we re-implemented the protocols and how it works with clients. We'll talk about problems, solutions and quirks of our work and the challenges of both supporting many older versions and following Microsoft's newest developments. Our support for Microsoft Exchange (and other) protocols follows the protocol specifications of EWS, EAS (Exchange ActiveSync), OXCRPC/OXCROPS, MAPI/HTTP and others. Speaker: Jan Engelhardt, Track: Modern Email devroom, Room: H.2213, When: Sunday 4 February 2024, 11:15–11:35 (Brussels time), Schedule: FOSDEM 2024 event page, Slides & links Slides, Code repos, Licence: Creative Commons Attribution 2.0 Belgium (CC BY 2.0 BE) (as stated in the FOSDEM video archive). Attribution: “[Servers] Exchanging Microsoft: Implementing 27 MS Exchange Protocols & APIs in OSS with grommunio” by Jan Engelhardt, FOSDEM 2024. Original recording: 2024/h2213/fosdem-2024-2731--servers-exchanging-microsoft-implementing-27-ms-exchange-protocols-apis-in-oss-with-grommunio.av1.webm from the FOSDEM video archive. This channel is an unofficial mirror; FOSDEM is a free and non-commercial event organised by the community for the community. Mon, 26 Oct 2026 02:10:17 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.watch https://peertube.watch/lazy-static/avatars/3b284627-b75f-409e-ac2e-10f4c2946f43.png https://peertube.watch/videos/watch/9ffbd2cd-150e-49f6-84a2-6ae9aedfb793 All rights reserved, unless otherwise specified in the terms specified at https://peertube.watch/about and potential licenses granted by each content's rightholder.