Almost all of my customers @FeilnerIT are reporting / asking / needing a fallback now. "What if Trump..." alternatives is a bestseller. And there's thousands of accounts at big entities that are currently recieving "backup" systems like opendesk or @grommunio with which they can work even if #POTUS does foolish things again. Or more criminal ones.
grommunio
grommunio efficiently summarizes all requirements of modern, digital communication and collaboration. This includes the device and operating system independent management of sensitive data such as e-mail, contacts, calendar, chat, video conference, file sharing and much more – in real time.
founded
2020
website
community
grommunio boosted:
#Mozilla #Thunderbird now works out of the box with #EWS #ExchangeWebServices – at least with the #opensource #linux implementation from @grommunio.
Works fine here both on #Fedora 43 and #SUSE #Opensuse #Tumbleweed. But you will need Thunderbird 146. (Fedora brings that, opensuse needs #opi installation from #Mozilla repos).
In this video you see how I delete an older account and remove the Exquilla plugin before successful install (noaudio)
http://www.feilner-it.net/files/EWS-Thunderbirdv146-OpenSuseTumbleweed-2026-01-11_14.45.24.mkv
grommunio boosted:
@grommunio #grommunio #EWS #ExchangeWebServices with @kde #Kontact #opensource #Linux – See it live at #FOSDEM in my talk. Who needs #Microsoft #Exchange and #Billions of #TaxMoneyExport?
Exchange without protection? grommunio ensures availability.
Support for Windows 10 will end on October 14. Microsoft has announced that it will continue to provide assistance to users upon registration, but updates and patches are excluded. What few people are aware of is that support for Microsoft Exchange 2016 and 2019 also ends on this date.
From mid-October, Microsoft Exchange administrators will no longer receive...
learn more https://grommunio.com/exchange-without-protection/
Digital sovereignty for local authorities - grommunio and CANCOM together at KITU Day
Magdeburg, September 2025. The partnership between grommunio, the open source alternative to Microsoft Exchange, and Cancom SE, one of Germany’s largest IT system houses, is bearing fruit: at the end of September, the partners took part at the KITU Day in Magdeburg, where representatives from the public sector met.
learn more https://grommunio.com/digital-sovereignty-for-local-authorities/
Newer, faster, more efficient: grommunio 2025.01.1 is here!
A new operating system, significant speed increases thanks to massive parallelisation and lots of new software components and features: The new major release of grommunio has it all!
learn more: https://grommunio.com/newer-faster-more-efficient-grommunio-2025-01-1-is-here/
grommunio boosted:
ICYMI: @mfeilner explores @grommunio an open source and drop-in replacement for Microsoft Exchange
https://www.admin-magazine.com/Archive/2024/83/A-feature-rich-drop-in-replacement-for-Microsoft-Exchange
#grommunio #OpenSource #MicrosoftExchange #security #privacy #FOSS
grommunio boosted:
Are you looking for an open source alternative to Microsoft Exchange? @mfeilner looks at @grommunio -- a startup from Austria -- that promises a "drop-in replacement" that uncouples your company from Microsoft's cloud strategy and its severe security and data protection issues
https://bit.ly/exchanging-exchange
#Exchange #grommunio #OpenSource #API #GDPR #CRA #security #MicrosoftExchange
The Arbeitskreis für Aus- und Weiterbildung Landau in der Pfalz e.V. (AAW, an NGO working group that provides job education for adults) has successfully migrated its almost 300 users to grommunio. Together with the grommunio partner enbiz engineering and business solutions from Kaiserslautern, grommunio’s standard migration tools helped to transfer the data from the existing groupware...
learn more https://grommunio.com/arbeitskreis-fuer-weiterbildung-landau-uses-grommunio/
grommunio's Open Source Ambassador Markus Feilner was invited to participate in the closing panel of the Munich Tech Days 2024 on July 24 and 25.
The panel was the closing keynote of the tenth anniversary of the conference, where Munich's tech elite meets to discuss about quantum and fusion technology, cyber security or digital sovereignty.
more about the event @ https://grommunio.com/grommunio-at-the-munich-tech-days/
#opensource #groupware #digitalsovereignty
Photos: Bruno Müller, BREAKING BARRIERS (CC-BY-SA)
grommunio at the Munich Tech Days.
Markus Feilner will take part in the Closing Keynote on Thursday evening.
learn more https://grommunio.com/grommunio-at-the-munich-tech-days/
grommunio boosted:
HZB: High-tech research center is relying on grommunio
Thanks to the cooperation with T-Systems’ Open Source Collaboration, grommunio is announcing another representative customer: The Helmholtz-Zentrum Berlin (HZB), known for its high-tech research, has been relying on the open source groupware from Vienna for several months now...
learn more https://grommunio.com/blog/high-tech-research-relies-on-grommunio/
grommunio improves mailbox performance, not only for all teams that work with shared mailboxes, but an enormous increase in performance for all users.
learn more https://grommunio.com/news/grommunio-improves-mailbox-performance/
Presentations and networking: Meet grommunio experts in Berlin and Nuremberg! Three upcoming events from SUSE, the world’s largest Linux vendor will feature grommunio. Join us and listen to two presentations.
SUSECON is SUSE’s big annual enterprise conference, where partners, customers, developers and community members meet...
learn more https://grommunio.com/blog/grommunio-at-suse-events/
Unfortunately the Bavarian IT Solutions Day in Augsburg this Thursday has been cancelled.
learn more https://bit-solutions-day.de/
grommunios Exchange Web Services with Linux clients
As of last year grommunio has been supporting Exchange Web Services. These services, first introduced by Microsoft in Exchange 2007, represent another important API via which clients use to communicate with Exchange servers. Especially interesting is that Microsoft openly introduced EWS to encourage third-party developers to contribute their clients. And they did...
read the full story @ https://grommunio.com/blog/grommunios-exchange-web-services/
Wir sind am 6. Juni beim Bavarian IT Solutions Day im Wittelsbacher Schloss Friedberg bei Augsburg.
Kommen Sie vorbei und informieren Sie sich über die neusten Open Source Innovationen in der IT Landschaft.
Die Teilnahme ist kostenlos, Anmeldung erforderlich.
Hier erfahren Sie mehr: https://bit-solutions-day.de
grommunio announces new CTO Michael Kromer at Grazer Linuxtage
grommunio is pleased to announce the appointment of Michael Kromer as its new Chief Technical Officer (CTO). Once more, grommunio CEO Norbert Lambing once has managed to to recruit an highly regarded expert: In a career spanning more than 20 professional years, Kromer has combined technical expertise with management positions...
learn more https://grommunio.com/news/new-cto-michael-kromer/
grommunio was the main sponsor of the Grazer Linuxtage 2024.
Watch the presentation from April 6 by the new CTO Michael Kromer
https://media.ccc.de/v/glt24-468--sponsor-grommunio-die-open-source-revolution-bei-groupware-lsungen
HZB: High-tech research center is relying on grommunio
Thanks to the cooperation with T-Systems’ Open Source Collaboration, grommunio is announcing another representative customer: The Helmholtz-Zentrum Berlin (HZB), known for its high-tech research, has been relying on the open source groupware from Vienna for several months now...
learn more https://grommunio.com/blog/high-tech-research-relies-on-grommunio/
Client Info
Server: https://mastodon.social
Version: 2025.07
Repository: https://github.com/cyevgeniy/lmst