Thunderbird Community Forum

The computer shop tells me that BT have altered settings making it difficult for Thunderbird to download messages to me. Despite lots of tries I now only have 1 account working properly. Is there a problem please and is it being resolved. thanks

The emails received and marked as junk mail do not automatically get placed in the junk folder. I would like clarification as to how this works. I want to have items marked as junk and/or spam removed from the inbox and placed in the appropriate folder automatically.

I have messages in an online inbox that I am attempting to move to my local inbox but nothing happens. I created a "new-inbox" folder and the messages do move there but I still cannot place in my local inbox. I have tried to repair folder but that didn't help. Any suggestions would be appreciated.

I have somehow lost the blue "write new message" icon that used to be just above my email address. Can't find it or figure out how to get it back. It may have said "compose new message" I don't remember. Thanks for any help

I just did a clean install of mint 22.1. Before I did that I wanted to export my address book. The only option I had was to export to Thunderbird mobile and I downloaded TB mobile to my android Tablet. Now I have a clean install and I need to have my address book back. I have searched high and low on your support pages, Reddit, and others. The only thing that comes close is from your support page that doesn't answer the question as it is circular. how to export to mobile and then import to mobile. How do I import the K9s file my TB mobile exports into my TB desktop? Thank you for your time James Maule

Good evening

I download the Google takeout document from my Gmail. I installed the Thunderbird and intalled the addon importexport.

I imported the Google takeout document to Thunderbird. I can see the email list.

When i click one of the emails, there is no preview. When i double click one of the emails, I got a new window. And when the window opened, i have nothing.

Not sure where is wrong.

Thank you

Hello everyone,

I'm experiencing the following issue and am having trouble resolving it.

・Normally, automatic reply emails should be received when there are inquiries from the website, but they are not displayed in Thunderbird. ・When I check the webmail on the mail server, I can see the emails, so they are definitely being delivered to the server. ・Occasionally, there have been delivery failures in the past, but since March 19th, not a single email has been received. ・As shown in the attached image, when I open Thunderbird, it displays "Downloading messages," and even when it reaches 60/60 downloads completed, the 60 emails are not displayed.

I suspect that the spam filter might be reacting, but I'm unsure of what to do. Could you please advise me?

Boy did I find something useful, then I ran head first into a brick wall.

I found this nice article about integrating google calendar (link to article here), but I need more detailed info on what to input for the Username and what to input for the Location.

I tried my full gmail, so "johndoe@gmail.com", is that what I use for the username? Or is it "johndoe"?

For the location, do I input "calendar.google.com" or something else??

I've tried it a few ways, and it just has the blue thinking circle next to "Please wait while your calendars are being discovered." but nothing ever happens.

Every 2 to 3 weeks the Thunderbird Calendar gets wiped out, ie all entries deleted. Once it occurred right after an update. A few hours later it will reappear. Why does this happen and what's the remedy to stop this?

To my new computer Thunderbird has just fetched the INBOX-mails from the IMAP-server, not my many subfolders, not the SENT-folder, not the SPAM-folder. This has previously worked when I changed to a new computer. How do I get Thunderbird to transfer these mails.

I'm looking for an email solution for my husband and Thunderbird looks promising. However I'd really appreciate input from this community regarding our specific scenario before I make a move. I have a programming background but I fumble blindly trying to be his email admin.

The problem we are trying to solve is his current email setup chokes on send/receive almost daily, after which he has to use Task Manager to kill a hanging Outlook.exe process. After years of tinkering I'm about to give up on Outlook completely. I think the main issue is how Outlook interacts with his Archive. His Archive.pst file is 4GB and Outlook saves it as one big file even though it has many subfolders which are essentially his filing system. Outlook is configured to save everything directly to a local laptop which is backed up regularly and we want to retain this local feature. Thunderbird is attractive because: 1. it supports the local drive storage 2. it appears to have options for transferring his Outlook archive and other folders over in such a way that he can continue to search and access them as needed. He would also like to be able to: 1. move new emails received in Thunderbird into the same (transferred) archive subfolders he has now 2. send and receive new emails without the program choking 3. view and send new emails from his Android phone (without accessing the archive) 4. transfer his email contacts from Outlook and manage them in Thunderbird Can anyone see red flags with this in Thunderbird? He does NOT use:

- Outlook Calendar (we synch our phone calendars to Google calendar online)
- Outlook Tasks

Technical Details (in case it matters):

- HP Pavilion 2021 laptop running Windows 10 with 1TB storage (200+ GB free) and 16GB RAM
- Likely to upgrade to a newer bigger laptop with Windows 11 this year
- Outlook is running from a Microsoft 365 subscription
- His actual email account is from gmail but is named per a domain name I purchased
- His Outlook account is setup using IMAP
- We use ESET for virus protection and NordVPN for WIFI security

Any comments or advice are greatly appreciated!

I recently changed my password for Spectrum e-mail and setup my Thunderbird e-mail with the new password, and when I try to get messages on Thunderbird it asks for the password, goes through the login procedure then then returns with the error message "Login to server mail.twc.com with username tppm.ca.rr.com failed." with "retry", "enter new password", and "cancel" buttons.

There used to be a menu in the message header (lower right of screen) that included viewing the message source. I accidentally deleted it and cannot find how to restore it. I have looked through the Config editor and main menus and cannot find an option.

I'm new to using the Thunderbird email client but I find the UI very sluggish and almost unusable compared to Outlook email for MAC.

Running on mac osx 12.7.6. Anything I can try to speed things up.

I currently am using Thunderbird Version 128.8.1esr, Mac OS 15.3.2 As of 3/21/25 no new emails. I have two other accounts in Thunderbird that were not affected. I am now getting the following failure message. Anybody else having new messages not showing up since then? Tom

4 days ago, the calendar app suddenly stopped working. If I try to add an event, it sends an error message saying 'An error occurred when writing to the calendar Sandra Kanfer Clarke! Please see below for more information.' and tells me 'modification_failed' and that 'If you're seeing this message after snoozing or dismissing a reminder and this is for a calendar you do not want to add or edit events for, you can mark this calendar as read-only to avoid such experience in future. To do so, get to the calendar properties by right-clicking on this calendar in the list in the calendar or task view.' At this point, the calendar switches itself to 'read only' and I get the exclamation mark and triangle saying this calendar is momentarily not available. This is a synced Google Calendar that has been running on Thunderbird for several years without any problems. I uninstalled the calendar and reinstalled it, I uninstalled Thunderbird and reinstalled it - none of it makes any difference.

Trying to send (redirect) a Thunderbird message using Simple Mail Redirection results in an error: "Transaction failed Unauthorized sender address. 1M8Pmu-1u0qJD3qDo-000B18. Please check the message and try again." Is there a fix for this or is there a better add-on for redirecting multiple messages at a time?

Thanks, Doug