Thunderbird Community Forum

On one of my Hotmail email accounts it doesn't download new email messages. I get a message saying "User is authorized but not connected". On my other hotmail and gmail email accounts they download OK.

Dopo aver risolto una questione di mail, ora quando" rispondo "ad una mail, non compare più l'cona di allego e quella di invio. Posso sapere dove trovarle e installarle?. Grazie

Over the past few weeks, emails have suddenly started migrating from my inbox into my trash. I can put them back into my inbox easily enough but it's really annoying.

The interesting thing about these emails is that, when they go into the trash folder, they stay there. I have my Thunderbird settings so that any emails I actually delete don't go into the trash but simply disappear.

Can anybody explain why this is happening and how I can stop it?

Thank you

I have two accounts with Thunderbird (*@talktalk.net and *@tiscali.co.uk). Each account will receive incoming emails (with or without attachments - single addressee or part of a group email). Periodically outgoing emails are blocked, with the error message 'Sending of the message failed. An error occurred while sending mail. The mail server responded: Reject for policy reason. Please check the message and try again.' Usually the issue seems to fix itself - this tome it has lasted longer than usual. Please can someone suggest a remedy? Tony

Bonjour, Je constate ,depuis quelques temps , que Mozilla Thunderbird ne fait plus le tri dans mes mails : je reçois des mails qui devraient être dirigés vers " mails indésirables " .Il s'agit d'envois avec adresse douteuse ( arnaques ), de rencontres ( adresses non répertoriées ) ,fausses alertes etc.. Comment procéder pour que ces messages soient automatiquement placés dans la boîte " indésirables " ? Merci pour votre réponse . D.Wickers

Hello,

We are experiencing an issue in a corporate environment. The Thunderbird mail client does not pick up the new password after it has been changed for a user on the domain controller.

Symptoms: After a password change in the domain, Thunderbird continues to use the old cached password, which leads to an authentication error.

Temporary solution: The problem is only resolved by manually deleting the mail account in Thunderbird and recreating it by entering the new password. This is inconvenient during mass password changes.

Question: Is there a way to configure Thunderbird to automatically sync with domain password changes?

large tranches of emails disappeaed from Thunderbird folders but are on the server. How do I force a download to restore them? Using windows 10 and latest Thunderbird

This is maddening. A couple of days ago TB started to freeze. I have not added any new add-ons. I don't even have any add-ons. I tried one suggestion of repairing and compacting folders and that did not help. I also tried the accessibility.force_disabled change from 0 to 1. It is still happening. I have to use Task Manager to shut it down because if I right-click and close it tells me that TB is already running but not responding when I try to restart it. It takes 4-5 tries to get it to the point where I can have a few minutes to do anything in the program. If I leave and come back, the mail window is frozen. Help, please! I have been using TB for years and never had this problem!

I had a Windows Update tonight, and after that, when I go to email the sign in dialog always pops up. This time it is not recognizing my email password, even though I know it is correct. Keeps saying login failed retry, enter new password, or cancel. This has never happened. I have HP Windows 11 Laptop.

My gmail account in Thunderbird has only two folders, the Inbox and the Drafts folder. so when I delete a message, it lines out the message in the inbox with a single line strikeout and then in order to get it out of the Inbox I have to leave the Inbox and then when I come back to it the message is actually gone from the inbox. When I am using my laptop rather than my desktop computer, all of the folders are there and the messages, when deleted go to the "Trash" folder and are removed from the Inbox. I have been looking for a way to get all of those folders that are normally a part of the other accounts that I have on Thunderbird without success. Is there anyone here that knows how to restore those additional folders to the Gmail account that does not currently display them?

bold text When in "Local folders" , I had icons for "New Message" and a spot that I could right click on to get new messages from certain servers or left click to get them ALL. Where did they go ?

FROM menu HELP

140.4.0esr (64-bit) Release notes Thunderbird for Linux Mintmint-001 - 1.0 Updates disabled by your system administrator You are currently on the esr update channel. Thunderbird is designed by Mozilla, a global community working together to keep the Web open, public and accessible to all.

Anthony

To be clear, I seriously doubt the problems I am encountering are TB's fault! The problems may be my fault since I've grown older, I've tended (believed) using new versions of software present my mind a BIGGER challenge than using the older software/version I have been successfully using? I'm still using Version115.10.1

After our ISP chose to start using Zimbra Oct. 7, 2025 and their tech support could not assist me in getting TB working the had me remove POP3 settings for TB and change to IMAP with their software.

FINALLY someone helped me get TB working with IMAP. For 3 days grrr. Now the ISP says I need to use their web mail, Zimbra.

So might downloading the current TB version and somehow get the In box, all the folder contnets etc. over - into the new TB help?

I was going to backup everything tonight, now I have little to NO hope, without help!

THANKS & remain WELL plus be SAFE!

Robin

When I right click on a folder in Local Folders and select “Copy To” and then select another local folder to copy it to it moves the folder, it doesn’t copy it. It shows up in the new folder and is deleted from the folder where it was, which is what you’d expect if the same procedure was carried out with the “Move To” command. In effect, for me “Copy To” is broken. Running latest version on Windows 11. Tried it in Troubleshoot Mode also, but no luck.

Yesterday I was able, with someone's help, to turn off the feature in Thunderbird that is a pop-up on lower left of screen that a new email has come in. But now I want to also get rid of the sound. Didn't have this problem with my old computer and Windows 10. Or is this something I can only not have when speakers are turned off?

I am not sure if this is an issue that is isolated to the DropBox provider or to all of them.

But the issue is when you have multiple attachments and then try and use FileLink to upload them, it appears like ThunderBird tries to make too many connections at the same time or tries to upload too many of them at the same time because some of them will go through but then all of a sudden an error message pops up for the remaining files that says "Upload Error" Unable to upload FileName to DropBox.

Which you could then right click each item below at the attachments location and Convert to DropBox but you have to do it with each individual file.

It seems like maybe the FileLink feature itself just needs to space out each of the uploads in order to avoid this error but I am not sure.

For the third time now I have found messages I have saved in Local folders in TRASH. I did not put them there, and the original ones in Local Folders are empty. I have had to manually move messages intended to be saved from Trash into my intended folders. I am perplexed why this is happening, as I have not chosen Compact Folders or anything. Very, very annoying. If it continues I will search for another mail tool

Hey

Thunderbird has a well-functioning Search function that uses the cache (or rather, what the background search process/function "read" and saved in global-messages-db.sqlite).

With a newly configured account (IMAP), it works like this:

- establishes the directory tree - downloads message titles (including sender, date, etc.) - *.msf summary files - then a process that downloads the entire message for local storage - in the background, an indexing process (GLODA?) starts, which creates a search database (subject, from, to, keywords in the message body) using the global-messages-db.sqlite file.

For very large mailboxes (>100k msg, ~50GB), this means that the server's content is transferred to the local disk (and stored in ImapMail).

The question is: how do I configure TB to run in "thin" mode, meaning after connecting a new account: - establish a directory tree - download message titles (including sender, date, etc.) -> *.msf - DO NOT download messages for local storage - start the indexing process, which will download and index the subject, from, to, and keywords in the message body (it will download and "read" the message, but not save it locally) and save it to global-messages-db.sqlite

Setting "mail.server.default.offline_download" to "false" will cause this behavior, but the message body will not be indexed (only from, to, and subject).

I tried to work around this by: - configuring the mailbox with the download option for offline use - waiting for it to download - setting "mail.server.default.offline_download" to "false" - deleting all "cur" directories (I use maildir) or deleting all *.eml files from the ImapMail directory.

Content search works for messages that have been downloaded (and indexed) previously; it doesn't work for new messages.

Why am I trying this? Some people have "air" laptops (meaning - weaker processors, small SSDs) and need access to email (via IMAP), including full search, without having all their email downloaded locally.

In other words, how can I configure TB via IMAP to: - download the directory and subdirectory tree - download the headers of all messages - "read" and index all messages (including their content) and store them in "global-messages-db.sqlite," but not store all messages locally (online mode only)?

Regards Chris

I suddenly this week cannot send email using Thunderbird (v. 140.4.0esr (64-bit)). I receive email fine. I can send email using webmail with my provider. Error message in Thunderbird is: "Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-h2p-555359.sys.comcast.net resomta-h2p-555359.sys.comcast.net ESMTP server not available (62240/216.183.125.238)." My provider says the issue is not at their end because my server settings are correct. Outgoing SMTP port is 465, connection security SSL/TLS. Operating Windows 11 v. 24H2.