Thunderbird Support Forum

Leider kann ich eins von meinem 2 Mailkonten nicht auf meinem Laptop mehr empfangen. In meinem Handy geht es. Update auf dem neuesten Stand Ich habe keine Änderungen vorgenommen Vielleicht kann mir jemand helfen ? Danke Marga

Due to changes in my Microsoft account, I had to update my outgoing mail server to smtp.office365.com with SMARTTLS. My email works, but I always receive the following error immediately after sending a message:

Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.office365.com timed out. Try again.

This is clearly a false positive, but it's annoying and also doesn't instill confidence when sending important emails.

As some other posts have suggested, I tried increasing the value of mailnews.tcptimeout, but this made no difference, which makes sense since it's not even a real timeout. Again, sending mail works, the error is false.

Repost, with an update, since my original post was never answered.

I use DAVx5 to sync Business Calendar on my Fairphone 3 (Lineage OS 18.1) with my Lightning (Thunderbird) Calendar on my computer (Windows 10). My calendars are hosted on Posteo.de. When I make an event in Lightning, it shows up in my phone, but not the other way around.

I tried making new events with each of my other 3 calendars that I have synced with posteo (Arbeits Kalendar, Task Calendar, WG Kasse Kalendar). It used to be that all 3 of the other calendars work, just not Standardkalendar. Not both Standardkalendar and Arbeitskalendar don't work. The calendar URL in Posteo.de matches the url given in DAVx5 for Standardkalender (and all others, of course).

I already wrote DAVx5 support. I checked if events made in my phone at least show up in my posteo.de web browser calendar. They do. The guy helping me suggested it could be that Lightning does not chech E-Tag / C-Tags correctly to determine what's new on the server.

I also tried turning off "Offline Support" for Standardkalendar, but the problem persists.

Could you please help me solve this problem?

Thunderbird 91.10.0 (32-bit), Windows 11. My PC went to sleep as normal while I was out for a few hours. When I returned and woke it up to check my emails I noticed the Thunderbird Calendar had gone - just the Inbox is there. In the View menu Calendar and Tasks are greyed out. The Calendar is stand-alone on the PC, not synched anywhere. I had put a couple of new Calendar entries in earlier, everything looked fine. No updates, installs or uninstalls before this happened. A Bitdefender scan says my system is clean. Email seems to be working fine. I have reached the limit of my technical abilities, any suggestions please?

When I receive an invite from outside of my organization (running K9 mail and/or FairEmail on mobile Android; with Etar and DAVx5 on the phone, as well; and email hosted on a2 in IMAP) and accept in Thunderbird, then Thunderbird immediately re-issues the invite as coming from me/my email address, and sends an update to everyone who was on the original invite. I have had this issue on two different laptops, and with two different webhosts...and it's making me batty. I currently select the "save a copy" option to put the event on my calendars, but then folks don't know that I am coming to whatever thing I was invited to. The webhost is also exploring the issue. Any help would be greatly appreciated. Thanks.

After upgrading to 91.10 today, the system icon shows new msgs, but the only way I can see them is to exit Thunderbird and bring it up again. I have no extensions.

Windows 10 Home. I've been using Thunderbird for years without issue, and it was working fine last time I accessed it. After an auto reboot (I'm not sure if TB was open that session or not), Thunderbird absolutely fails to start. At all. I get a momentary hourglass, then nothing - no errors, nothing in Task Manager, even if I have it up when I try to start TB. I've tried from start bar, desktop, file location.

I've tried starting in safe mode (same lack of response), deleting any of the files that should be recreated on startup, rebooting the computer... still no response at all. I have decades (literally) of emails stored in the app's files.

I tried using MozBackup (yea, it's ancient but it's what I have) and received an error: Problem with backup email account! Account [filepath]\JodiTbirdProfile\ImapMail\imap.gmail-1.com (but! The profile that was being backed up - the only one offered besides the *.default* was JodiTbirdProfile2) ... and a couple similar errors for other files that I actually don't care about. At the moment it is still running... probably need to clean up my mail databases again....

Appreciate any assistance! If there's a newer/better third party app to back up Thunderbird before I start... that'd be great info too!

Recently I have noticed Thunderbird will reopen without assistance. I can close it at the end of the work day and then log into my computer remotely from home later in the day and Thunderbird will be running. I will close it again only to log in remotely again later to find it up and running. It is not in my startup folder and I can't determine why it starts unattened.

Thanks, Brad

When I try to update my account settings in thunderbird from password to oauth2, I am getting secure connection failed error. Imap working fine with password. Thunderbird version 78.7.0 ( 32 bit). Tried accessing outlook.office365.com works without error. Option OAUTH2 giving error.

I've been happily using the feed from https://babylonbee.com/feed for quite a while, but in the last few days, suddenly Thunderbird 91.10.0 (64-bit) gives me the feed "is not authorized" error. Previous solution https://support.mozilla.org/en-US/questions/1166672 isn't working for me - Lightning is no longer an extension, so I can't deactivate it. I'd remove the calendar function entirely if I could - I don't use it.

Going to advanced preferences and pulling up calendar.useragent.extra gives me radio buttons to select Boolean, Number, or String with a plus sign to add it. Adding one doesn't fix it. Setting to false doesn't fix it. Deleting the one I added doesn't fix it. Right click only gives me Select All, which highlights all text on screen and does nothing.

Most of my other feeds are fine, and checking the website shows the RSS URL has not changed.

Help?

Hi. At the beginning of the year my email host upgraded their servers to a super mega one. The incoming POP address was change to the new one. Thunderbird created a new inbox which only received new emails. My old ones had disappeared. On my Mac the folder 'Metadata' showed Thunderbird with old inbox (red dot) and the new inbox (Yellow dot), whilst the green dot folder has some remaining files (2016/7), see screen grab. I copied all the old emails across to the new yellow dot inbox folder (years of emails) but they do not show in my email browser window. I have R clicked the browser inbox and re-paired the folder to no avail. I have searched for the 'Inbox.msf' and found five with old dates, see screen grab.

Help!

When I am adding an account to thunderbird that requires signing in through a third party website, such as Google or outlook, the window that I am presented with is inaccessible. What I mean by this is that my screenreader cannot navigate within it. I'm using NVDA, for reference, and when tabbing through the window all I hear is "unknown" thus I can't actually enter any data into it to verify my account. In previous versions of Thunderbird, I would be taken to an actual site in my browser, but that no longer happens. Instead I'm getting stuck at this window, and to get around it I'm trying to use imap and generate app specific passwords. However, some orgs won't let you do that. And this is my problem. Have to sign in to outlook/google but cannot as the window is inaccessible. There are no elements, it would seem, for my screenreader to focus on.

Hello, I have had issues connecting gmail to Thunderbird, I have set the correct gmail smtp settings and when i press 'done' it just gets stuck on 'password ok' and nothing happens. I have 2fa on and am using the generated app password and I have tried 0AUTH2 and Normal Password authentication method options, I am running Thunderbird as Administrator, have added an exception to windows firewall and have no antivirus installed (except the one built into windows).

Would appreciate any help. Thanks.

Since I've installed TB I keep getting the error message that it can't save the message as a draft. I configured to use the IMAP "Drafts" folders I have already, but I kept getting the error. When I created a local folder and changed the settings to that one the error didn't go away.

What's wrong?

Greetings. On one of my Windows 10 64 computers I replaced a working, older version of Thunderbird with the latest version (91.10.0 64 bits). Now, I am unable to connect to my gmail mail with that computer. I compared the settings with the ones on my laptop, they are exactly the same (SSL/TLS, OAuth2, port 993/465 etc.) I checked out the Preferences, everything is set as advised but I find no gmail account/password installed. I have spent a few hours in comparing, looking up info on how to install etc. but at no avail. I am a retired computer programmer, so lack of knowledge should not be the issue. Can you please hint me as what could be the solution? Keep IT Up!

Greetings,

What I want to accomplish is having the composition of a new email look like the message that gets saved in the sent folder.

The message (after it's sent) looks exactly how I'd like to have it look, when I'm writing a new email.

The new emails are all small text and no hyperlinks are showing. Can someone point me to a setting change to accomplish this?

Thank you!

Steve

Hello,

On my new laptop, Thunderbird is locking up and lagging over and over. It happens to everything I try to do when I start the program, and then after I use the program for awhile, everything is OK until I get an incoming email - then Thunderbird locks up until the email is fully loaded.

When I first load the program lags are happening when I: Select a menu, choose an email to view, when I try to type something the cursor freezes and then after a short wait it types what I just typed. Pretty much all operations lag a lot, even clicking on the X to close the window. After I use the program for awhile, this gets better, but not 100%. As I mentioned the program lags when I get an incoming email.

I only have one add-on installed and it's disabled. It's called, "Manually Sort Folders." I have the latest version of Thunderbird. I'm running Windows 11 64 bit. My laptop has Optane memory built in. Is the Optane technology causing this? When I run Firefox I have no issues at all - even if Thunderbird does.

As you can imagine this is frustrating when I get to work and I have to answer a lot of emails. Would you guys walk me through possible solutions?

Thanks, Michael

(continued from https://support.mozilla.org/en-US/questions/1318142 )

When I finally installed the most recent Thunderbird update, to 78.7.0, it crashed and I lost everything, including specialized mail folders and settings.

Is it possible to go back to a date just before that crash, to retrieve and reinstall those folders and settings/prefs via Time Machine on my Mac desktop? It's certainly not the easiest way to do this, but I don't know how else to get all of that back.

Thank you!

Hello, all.

Ever since I upgraded Thunderbird to 91.9.0 (64-bit), it has been freezing consistently and repeatedly - upon startup, and every 30 minutes, it freezes for approximately 5 minutes and 40 seconds. Then it unfreezes and works fine. But then 24 minutes and 20 seconds later, it freezes once again, going "Not Responding" in Windows 10.

When it freezes, Thunderbird uses 12-16% of my CPU, and memory usage steadily climbs, going up 0.1-0.2Mb each second, and goes back down to normal on the unfreeze.

Now, what have I done? It still happens in Troubleshooting mode. It happens in Troubleshooting mode while Windows is in Safe Mode With Networking. Adding an exception in my antivirus (NOD32) did nothing, as did turning off Allow Windows Search Messages in Advanced. Turning off Check For New Messages in Account settings does nothing. Nothing consistent shows up in the Error Console either, but I'm not a coder, so don't really know what to look for.

Ideas?

Thanks.