Thunderbird Community Forum

Hallo, vor einiger Zeit habe ich mein Thunderbird E-Mailkonto gelöscht und möchte es wiederhrstellen und mit anderen E-Mail konto verknüpfen; doch da es eine andere Person installierte, weiß ich persönlich nicht wie das wieder hergestellt werden kann und die Posteingang und -Ausgangsnummer angezeigt werden Gibt es ein e Möglichkeit, dass mir jemand hilft oder das damalige Kennwort herauszufinden, denn die automatische Installation wurde nicht erstellt. Vielen Dank für Ihre Hilfe

i have pop3 account and unchecked leave on server - but greyed and checked out is a 'leave for a maximum' which i have as 1 day, there doesnt seem to be an option to uncheck this? I dont want them on the server which is why i chose pop account. yet when i open web account, the emails already downloaded using the pop account are still there even thoug they were downloaded days ago. Why is this and how do stop this? is there a 'leave copy on server' box to uncheck that I am missing? i want to use pop to remove from server and just use locally but its not doing what i thought it would, which is remove from setver. Also it keeps repeating downloading from years ago so I was hoping that when the server synced it would stop downloading the ones it has already (mulitple times) I made an imap account to try to sort emails that way but it also shows old emails still on server. Should i delet this imap account as I already have a pop account running? Very confused. Help figuring out what to do appreciated.

My company uses your email software and everyones email is not working. For example, my email (madison.l@valleyhha.com) does not allow me to send messages without an error popping up (Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. You can retry or save the message locally to Local Folders/Sent-madison.l@valleyhha.com.)

This goes for my entire staff of 20 people. Same error, also all my unread messaged in my inbox have now disappeared. Not only that but we are also not receiving any new emails either

When I want to send a message (Thunderbird)I receive this message since 10 days (about..): "Clienthost rejected by spamhaus for spamming issues". see htps://check.spamhaus.org/query/ip/37.66.26.22 for further information I can use successfully WEBMAIL Can you explain me what is it? Thank you

When I let thunderbird compress the inbox and other folders, the not read flags on all new emails get reset as if I have read all of the new emails. Compressing the inbox and other folders should have no effect on the flags showing a message has not yet been read. That only makes sense. The not read flags getting reset started happening several versions before 145.

I logged in to Thunderbird the other day and none of my stored folders were displayed. I logged in to my Virgin Media Email and they were all there. About 9 months ago I had a similar problem and it was resolved using my Thunderbird backup and help from yourselves. I cannot get this to work this time. Firstly I would be keen to know why the stored folders have suddenly not loaded when I start Thunderbird. Secondly is there an easy way to get the folders downloaded from Virgin Media rather than trying to use my backup? Thanks.

Hello! After I was on vacation for about 2 months, I suddenly couldn't receive any more emails. "Login to the server imap... failed." Why this - and what can I do? Thanks!

Hello,

I run Thunderbird 146.01 under Windows 11 Version 10.0.22631 Build 22631... TB pulls messages from a POP Server.

Though I have tried many fixes TB keeps reverting to requiring that I manually run both Spam Sorting, and Filter Sorting, usually after running these functions automatically for about a week.

Might someone suggest a fix that will have some lasting benefit?

Many thanks,

Lothar

For as far back as I can remember I've been using Mozilla Thunderbird on a old computer running Windows 7. I've a Win10 machine here so a few months ago, I downloaded the latest Thunderbird and I was suprised to see it looked very different. After a bit of experimenting I managed to get it looking familiar so I uninstalled it with the intention of trying it again early in 2026 when I've a bit more free time, So this morning I installed the latest version but it looks even more different now :-(

I'm not sure how to attach images here but if it works, the original one looked like Capture01 and this morning's one is like Capture02. I still had my installer from a few months ago so I installed that one and it looks the same as today's one. Notice that there's no menu bar any more and AFAICT I can only view email headers and not their contents. Also, the 3 boxes at the top RHS (for sizing the window / minimizing it etc) don't work at all.

Is it me doing something wrong - or are there maybe some settings somewhere that I need to experiment with?

I am currently using Thunderbird 140.6.0esr (64-bit). Operating system is Windows10, my computer doesn't meet Windows11 requirements.

I use Thunderbird to receive messages from both my Orange.fr and Gmail.com accounts. I use the Message Filters tool on both accounts to sort the incoming messages into different folders to make it easier to follow threads. I have Thunderbird running in the background all the time that my computer is active.

The Thunderbird Icon on the taskbar is set to show new messages. It used to show the total of all incoming messages, but now (I think just since the latest update) it only shows those new messages that have remained in the main inbox of either account, any messages that have been sorted into sub-folders are not included in the number shown on the icon. This means that when I have been away from the computer leaving Thunderbird running I now have to enter Thunderbird to see if any new messages have been sorted rather than just glancing at the taskbar.

What setting have I missed or is this a "bug".

More an annoyance than big issue. Thanks in advance for any guidance you can provide.

John Shelley

john.shelley1@orange.fr

Been getting a bunch of this, usually in my TB TRASH folder, I think from the Outlook online server.

The server couldn't retrieve the following message:

Subject: "<Removed for PII>"

From: "Not available" ("Not available")

Sent date: 10/31/2024 2:25:02 PM

The message hasn't been deleted. You might be able to view it using either Outlook or Outlook Web App. You can also contact the sender to find out what the message says.

I have 2 personal email accounts: Outlook and Gmail. My client is Thunderbird. Running Win11 25H2. Far as I know, problem began recently. This is a screenshot of some messages from TBirds TRASH folder.

User's image (In images) Thunderbird just tried to fetch emails. Got a notification that it could not get messages, this time from GMail.

What does this mean? Outlook/Gmail servers or Thunderbird? What do I need to do?

When I receive a newsletter from my club, it doesn't show the pictures. It does describe the picture and warns it might be AI generated. If I reply to the email or forward it, the pictures are displayed. I suspect this might be a settings problem. The original email includes:

[image: A picnic table and benches on a stone surface AI-generated content may be incorrect.] [image: A group of people dancing in a room with lights AI-generated content may be incorrect.]

[image: A person and person standing next to a vase AI-generated content

may be incorrect.] [image: A person sitting at a table with food on it AI-generated content may be incorrect.] [image: A group of people sitting at a table with plates of food AI-generated content may be incorrect.]

[image: A group of people dancing in a room with lights AI-generated content may be incorrect.] [image: A group of women posing for a photo AI-generated content may be incorrect.] [image: A group of people standing in a room with lights AI-generated content may be incorrect.]

Can anyone shed some light on this?

Bonjour, J'ai créé un message d'absence pendant mes congés, ce message à généré une saturation de ma boite mails, depuis je n'arrive plus à faire fonctionner correctement Thunderbird. Le lien entre Gmail et Thunderbird semble ne plus fonctionner. Comment dois-je procéder ? Est-ce que je peux réinitialiser les paramètres de Thunderbird sans perdre de données et si oui comment ? Merci

Hello, is there a way to setup thunderbird to automatically archive messages? I'd like to have the ability to automatically transfer old messages into an archive mailbox after X number of days.

I am unable to connect Thunderbird to my “Personal” Outlook.com mail account. I installed Thunderbird on a new laptop with Win11-home. I connected to yahoo and icloud without issue. In the past I used an app-specific password to connect Thunderbird to Outlook. But Microsoft no longer allows me to make app-specific passwords on a personal account. I have two factor authentication on the MS account. I have tried turning off virus and firewall protection, without success.

When I create a new email account in Thunderbird I get the following error. “Authentication failed. Please check the username and password - Exchange auth error”

If I put my personal name in the Your Logon field, rather than my email address, I get a Microsoft screen pop that shows “oauth2” in the URL. But if I click the personal account they present it quickly fails.

Is there a workaround, to fix this, since I can’t get a app-specific password and have two-factor authentication on my Microsoft account?

Thank You for any help you can provide. I have spent a day researching this without success.

Kurt

Does someone know the CSS code that would change the inner color and the border color of the star in the message header toolbar? Please see my screen image. And which file the code belongs in?

Or another method to change the colors?