Making your list of @fosdem talks to try and get into/watch online? We are too! Be sure you don't miss @bogo and his talk, "What translating Thunderbird taught me," Sunday 1 February at 14:50 in the Translations dev room (K.3.401) 🌍
I observe some weird behaviour from my organisations #outlook server. I use #thunderbird as a desktop client. When I send a message to an unknown recipent, the non delivery report gets flagged as junk from outlook and will never be delivered into the inbox. All support staff I am asking are trying to convice me, I am doing something wrong or that is just the way it is.
E.g. #microsoft says: "This is not a misconfiguration in the traditional sense (such as no broken SPF/DKIM/DMARC, no transport rules required). Rather, it relates to how EOP handles NDRs based on the originating client’s submission method. It aligns with Microsoft’s design: Outlook web/desktop clients receive preferential treatment for internal mail flow."
For decades, “The Year of the Linux Desktop” was treated as a tech world punchline. But as we enter 2026, the data shows the laughter has stopped. Between th...
@Marcus they work but are far less convenient than a custom channel. eg, my channel "FOSS" includes hashtags #Linux, #FOSS, #Firefox, #FirefoxNightly, #Thunderbird, #Arch, #ArchLinux, & several others. To do it manually just by my saved tag search links requites the tedium of having to do all those searches individually in series, not automatically in parallel as done by the channel.
The Thunderbird team is off to rest and recharge, and come back strong on January 5! Until then:
If you need community support: support.mozilla.org If you need to report a bug: bugzilla.mozilla.org If you want to suggest a feature: connect.mozilla.org
We can't put enough gratitude in the character limit for everything our community has helped us do this year, so we wrote a recap blog. Thank you everyone who made this all happen! 💙 🙌
It's the last Development Digest for 2025! We're celebrating our Exchange success (but not resting on our labors), sharing our Calendar UI milestones, and grateful for a community contribution to fix a 19-year-old bug!
Nice awareness. Although I have been using #Disroot as my primary mail service provider since 2018 (just after OpenMailBox was sold), I have recently added #Tuta as a secondary. (Recommendations from fsf.org/resources/webmail-syst…)
Btw, I have been using #K9Mail (becoming #Thunderbird now) since a decade on my Android phone.
I have found that Tuta is not supporting IMAP/SMTP protocols and hence I will have to install Tuta's Android application. How does it works without these protocols?
This Week in F-Droid TWIF curated on Thursday, 11 Dec 2025, Week 50 F-Droid core We had great reach with our “F-Droid and Google’s Developer Registration Dec...
Exchange email support has landed! We've invited members of our desktop team to Community Office Hours to give us all the details about what's in now and what's coming next!
Ok, I may be being silly, but how do you change your nickname in in an IRC account on #Thunderbird? I don't mean once you're logged in, /nick works fine. I mean how do you change the nick you sign in with?
Recently we completed a security audit of Thunderbird Send, our upcoming end-to-end encrypted large file sharing service, with the help of the @ostifofficial and 7ASecurity. Read our summary of the report's findings, and learn how we've acted on these recommendations to be more secure and worthy of the trust our user community places in us.
Fixing old Android code, integrating with the upcoming Thunderbird Pro, and making a balanced iOS roadmap are all part of our mobile development goals in 2026.
If your school or workplace uses Exchange for email, accessing it with Thunderbird just got easier! Our blog post has all the details on getting connected. Additional features, like calendar and address book, are in the works!
Warum nochmal kann Thunderbird keine VJOURNALs anzeigen, bitte? Wieviel Arbeit wäre es denn, dafür ein PlugIn / einen Konnektor zu schreiben (auch einfach interim)? @thunderbird #thunderbird #mozilla
I am a [community](https://pontoon.mozilla.org/contributors/bogomil/) [contributor](https://bugzilla.mozilla.org/user_profile?user_id=359734) and a long-time user of [Thunderbird](https://www.thunderbird.net/).
Thunderbird 144 is out now! Exchange support is closer to officially landing, dragging and dropping your folders is easier, and we're adding new ways to keep your email safe!
and here I was happily emailing people on #Thunderbird and making designs on #Penpot and #Inkscape to share via #XMPP, at which point I remembered to catch up on discussions on #Loomio, and got roped into drafting a manifesto on #Cryptpad, all while blissfully unaware of the chaos going on until I opened #Newsflash and read about it all on the #RSS feeds that I synchronise via #NextCloud, at which point I decided to head over to talk about it with the world thanks to #ActivityPub!
Not all of our progress is headline worthy! But steady, detail-oriented work, described in our latest development update, is a firm foundation for the next leaps forward.
The… cool people… at @thunderbird have released a new feature called "Account Hub". It works exactly with Outlook.com and Google Mail and crashes on any self-hosted mail server 🤦.
Do they even test their crap with independent systems? OIDC support being limited to Google and a handful others in code was one thing, but how does a feature that simply breaks all mail accounts but GAFAM make it into a release?
