I-Thunderbird Community Forum

I recently hat some issues with one of my accounts. At first some random mails disappeared right after receiving them, which made me question my sanity. Last week, I was able to witness a mail being recieved, appearing in search results, disappearing in the client and disappearing the mail from the server about a minute later.

While I was still wondering about this and looking for solutions (I tried the "Repair Folder" last week), I found no apparent changes, until yesterday, when about 9 months worth of emails turned into thin air. (Not in the inbox, not in the trash, not in the archive or on the server). Fortunately our IT department has backups and could also confirm my suspicion that the deletion was issued from Thunderbird.

I think there is a severe bug somewhere, but at the current moment I don't have the smallest clues to write a useful bugreport. Where would you start collecting evidence for this?

(Running Thunderbird, version=128.6.0, on Windows10, when this happened)

Thanks, Daniel

Running Thunderbird 136.0 (current as of 14 March 2025) on Windows 11 machine. E-mail account is hosted on office365 and has a personal (i.e., myname@mydomain.com) SMTP error " Connection to server outlook.office365.com timed out" Parameters were set per recent article on thunderbird forum for office365.

Thunderbird will not start because the first visible startup action is the popup window: "Please enter your Primary Password". Unable to create a password for the initial,first time re-start of Window if on old machine, option was to avoid this. How to fix? ...so I can set and set and use it.

After closing the In Box, you'd think there'd be some simple obvious way to open it again. But no. The switch is hidden. Your Help agrees that the switch is nowhere to be found in the Menu Bar (as it obviously ought to be), but that it can be found in the Tool Bar.

The Tool Bar is not found in the Menu Bar either (as it obviously ought to be). Short of relaunching the program, what am I to do?

Did the designer of the interface have an addiction to video games? In video games everything is hidden, as though it were FUN to poke around looking. I have never played a video game. They are not fun. They are a waste of time. All commonly used email tools and windows should be accessible under the Menu Bar. Please fix your program. Meanwhile, please tell me how to open the In Box after closing it. Thank you.

Thunderbird 15.5.1 Mac OS

Hello, my problem is with Thunderbird's Schedule.(the one linked to the emails service) I have deleted a birthday (recurring) in my calendar, the person has passed away. I received a strange message here after attached , sorry it is in French Since then I have not been able to modify, delete or move any of my old tasks! (move a meeting, cancel a meeting or change the meeting time) This message comes back every 10 seconds! Thanks for giving me a hint to solve this problem ! JP

All fields in Account Settings (Account Name, Your Name, Email Address, Organization, Signature text) have gone blank. I keep entering the appropriate text in each of these fields but as soon as I close the Account Settings tab and reopen it, they all disappear.

I'm finding threads that include the correct emails for the subject, but also additional emails that do NOT relate to the original subject. How do I pull the other "subjects" from being in the wrong thread and create their own thread. See the highlighted emails in the attached image. Each color represents a separate thread that should stand on its own.

Thanks.

Suddenly, I can't send emails from Thunderbird. I get this message:

Sending of the message failed. An error occurred while sending mail. The mail server responded: <rbrawer@nyc.rr.com> sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that your email address is correct in your account settings and try again.

I'm running Sequoia 15.1.1 on an M1 Mac Mini. Never had problems before. TB 128.6 0 esr.

As soon as it opens it crashes.

I have a lot of unopened files in a pop mailbox, going to try and remove them.

It seems to still work on my iPhone. Any ideas?

I M get this working. I'm in a panic. Please help.

Somehow, I have a second copy of one of my email accounts. They are mirrored, so what happens to one, happens to the other which makes deleting one not acceptable.

Any way to get to the mirrored account?

Thanks, Sue

I have imported a certificate and setup my Thunderbird. When I try to send an email using encryption it won't send and Thunderbird displays the message ' End-to-end ecryption requires resolving certificate issues for XXXX@ddd.com'

How do I resolve this ?

We have 1000 clients network and most of the clients having thunderbird installed (latest version) and configured , since last few months we started getting complaints that some of the local folders not showing their content mail in the system , we tried to repair folder does not work, we tried renaming .msf does not work.. when we see the some of the local folders mail they appear in the list but if you try to open it it opens blank and after trying troubleshooting steps thoes mails getting disappeared.. please assist..

I asked bout this a couple of weeks ago but didn't get a response. Perhaps I asked under the wrong heading. I'm not the sharpest tack in the box when it comes to these things. Over the holidays I prepared many emails to send afterwards. I created sub-folders in my drafts folder. I sent the emails OK, but then I couldn't delete the folders I created in the drafts folder. Not only that but the folder icons in Drafts turned from yellow to purple and they did that in all four of my email accounts, even though my storage of emails was all in one single account. When I right click on the folders I don't get the option to delete and the folders won't allow being dragged to trash. Also one of the folders suddenly disappeared with all of the prepared email in it. Can you help me correct this condition? Thanks.

I have tried global settings and the settings in Thunderbird but whenever i reply to a message the text is very small. I can enlarge it but have to do it for each message... Help! Please...

Okay, I have done everything to delete a gmail email account in the 128.6.1esr (64-bit) version of Thunderbird.

1 - In Account Settings = deleted the entire email account 2 - Deleted any association with calendar 3 - Had tech support person (my own) remote in, spend 1/2 hour and could not find what else needed to be deleted.

Here's the thing: I get a popup from google saying xxxx@gmail.com saying:

"Sign in to continue to Mozilla Thunderbird email"

Create Account ....... Next

Click on Next = 404 error (and Google says nothing can be done about it in so many words) Click on Create Account = "something went wrong"

Can someone help? This popup occurs about every 5 minutes and I cannot receive *or* send email while the popup is open. So annoying.

Thanks in advance.

Just what the subject line says. Go looking for something and Search doesn't find it. Even after I remember the email and find it, Search does not find it.

Why is this? It is un-usable, actually as it happens all the time.

For instance, putting in a company name like "walmart.com" will find some but not all the emails with walmart.com and certainly not the most recent ones specifically with a person's name.

I was forced into an IMAP email server when switching over to Allo Fiber internet. I now have several issues. I had 7 pop email accounts that all worked within Thunderbirds local folders. All 7 email accounts drop all their email into ONE inbox folder. Now, having a IMAP server and losing pop email service, I have to use message filtering to put all of my new email accounts into the one local inbox. It seems to work, but every new day, it fails. I turn off the computer, go to bed, wake up, turn on my computer, thunderbird then downloads email and like clockwork, message filtering fails every time. I then have to manually move all my email from all my different email accounts into the one local inbox. And sometimes that doesn't even work! I have to shut down thunderbird, restart it and try again to move the emails!!!! Come on Thunderbird...get your act together and get IMAP working just like POP does. I am pissed and am now looking for a different email software program!!!

Hi I’m a very grateful Thunderbird user, for at least 10+yrs - and its always worked for me. I have done some pretty regular donations as well, to express my gratitude. On Wed my Thunderbird seized up on startup “Not Responding” and after about 5minutes of waiting I killed it with right hand top x. I have one imap and two pop accounts, plus about 7.2G of filed local mail The size on disk of my <profile> is 9.6G My connection to the mail server imap.sonic.net is a DSL ~ 1Mbits For the last two weeks, the writing emails, and saving has been a bit jerky – I assume having I’m Windows 11 latest (i7-9750H CPU @ 2.60GHz ram 16G.) with a C: drive 256G and d: 1000G. I have C:\Program Files\Mozilla Thunderbird - and been on the update channel, though not beta. D:\usr\a\n\AppData\Roaming\Thunderbird\Profiles\<MyProfileName> I copied the profile to a NAS for safe keeping. I ran through https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird

https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode

and for all same result on startup – seized up. I reinstalled Thunderbird Ver 128.4.3esr (64-bit) – seized up. I created a new profile – and starts ok I started using “thunderbird -p” and choosing profile and “work offline” to not pull in the pop account. I copied in the old profile 10G, deleted contents of imap – still seizing up, So I started judiciously deleting older .sqlite though didn’t keep track initially – and then was able to startup, though sometimes also went into being seized up. I went through local folders – folder properties – repair folder. I still have the orginal 10G that was seizing up - so I could do some debug if useful.

All of a sudden yesterday 10/14/24, my email keeps saying not responding and freezes for at least 30 seconds before it will let me do anything. I have tried all suggestions that were given over the internet and none of them are working. I need help please! [edited phone# from public community support forum] Kelly

I need an EXPERT in Thunderbird email program to restore emails that are in my profile, but not accessible. I am willing to pay if you are an expert. Please email me at fr33dom1@att.net