I-Thunderbird Support Forum

We have recently moved to a new mail server. We currently have about 20 Thunderbird email clients on Windows in an office location and a macOS home machine. On all machines email is configured to use IMAP on hostname.com port 993 SSL/TLS with Normal Password and SMTP on hostname.com port 465 SSL/TLS with Normal Password.

The home machine is working 100% with no issues, it does have a much faster and lower latency internet connection than the office machines.

Many of the office machines are experiencing intermitent SMTP error messages when sending, intermitent, "unable to save mail in the Sent folder of the Inbox", messages and intermitent unable to move messages between folders.

I have checked and double checked the settings on affected machines - however, I believe a settings issue would result in nothing working, not intermitent functionality. Plus all is working fine on the home machine with the same settings (different OS, but ports and security settings all dictated by server).

With one client behaving properly, the server likwise behaving properly when addressed by the working client and the intermitent nature of the problems we are finding, I suspect we have some sort of network issue. Somthing timing out or a firewall/AV software causing a delay.

I have increased mailnews.tcptimeout on affected machines to 250 based on a forum article but this has had no effect (No idea of units here but if it is seconde then I am not supprised - the SMTP errors, when they happen are almost instantanious).

Any ideas on how to trobleshoot this problem further - The problem seems to get worse through the day, although that may just be peoples tollerance of an intermitent issue going down.

I set up a new Windows 11 PC (64-bit) about 2 months ago, and installed Thunderbird Supernova. I allowed MTS to choose all the settings and everything was working fine until about 3 weeks ago I am now running version 115.11.1 (64-bit). I noticed that many messages I recieve at scheduled times every day were not appearing in my MTS message list until sevveral hours (a few actually took 3 days) after their normal delivery times. Checking with the senders revealed no change to the time they were sent. Looking at the messages when they appeared showed that they WERE received on time. Logging into the web interfaces for Gmail and Comcast/XFINITY email revealed that the messages were arriving on time. The only logical conclusion is that MTS has a problem in its IMAP protocol implementation that does not recognize new/unread messages as such, and therefore does not retrieve them. I am legally blind, and up to this point, mTS is the only fully accessible, easy-to-keyboard-navigate email program.

WHY is it that I can get into my email account through Thunderbird and download mail, but when I try to go into the account manually I can't? I go into the settings copy the password, then manually input it into gmail, but it says it's the wrong password? I am using MacOS 10.14.6, and Thunderbird 115.12.2 (64-bit)

Thanks.

I have TB ver 115.12.2 64 bit. It reports as being up to date. During attempting to make the changes necessary to accommodate Microsoft's Modern Authentication I reach a point where the option to select OAuth2 does not appear in the Outgoing Server SMPT settings drop down menu, see the image. How do I deal with this? Thanks for your help.

I was looking for an email I expected to find in my Inbox, and found that a message filter was applied to move it to another folder. I can see the filter log entry for this action.

This filter consists of 9 specific email matches ( From "is" ....); the message that was moved is NOT in this filter list.

When I moved the message back to my Inbox, it was moved again.

Any ideas on how to stop this happening? Can I even trust filters?

I recently deleted all my filters as I was not sure they were working correctly, and recreated them carefully. I currently have 10 filters, a few are one off created from a message, and none have more than 10 matching requirements.

I have attached an image of the filter at issue, and here is the filter log entry:

[7/1/2024, 9:40:07 AM] Applied filter "Bad Shopping" to message from grandrr@olypen.com - [RW] RW Potluck Tuesday July 2 at 7/1/2024, 9:19:44 AM moved message id = faecf27e13e90b655df9ff49ee14a5ec@olypen.com to imap://sjstowell1000%40gmail.com@imap.gmail.com/Good Causes & Bad Shopping

Why? Actual bug? DB problem?

I have done a custom install of TB on D:\ drive, moved Profiles folder to D:\, verified that account settings/server settings have local directory pointing to D:\ drive.

Can I delete all TB files on C:\? TB still *seems* to be using those files. I really need to free up space on C:\ - tiny drive filled with Windows OS, huge D:\ with nothing on it.

Thank you for your time and attention!

I have set toolkit.legacyUserProfileCustomizations.stylesheets to TRUE in both Thunderbird and Betterbird.

I have created the file C:\Users\MYNAME\AppData\Roaming\Thunderbird\Profiles\r2v9k1zw.default\chrome\userChrome.css

I have successfully entered css into that file that work as expected in Thunderbird v115.12 and has for the past several versions. But I have NOT been able to do anything in that file that works with BetterBird. In fact, using the inspector, I don't see userChrome.css even being loaded! I have also tried starting the file with '@namespace html url(“http://www.w3.org/1999/xhtml”)' but that makes no difference either.

How do I get BetterBird to recognize the userChrome.css file?

I had a POP account on my desktop PC for many years. Recently I purchased my first laptop and decided to go IMAP on it, while retaining my old downloaded emails as an archive on my old desktop PC. I turned off automatically downloading emails in this desktop PC's POP instance of Thunderbird.

(The desktop PC is Windows 10, the laptop is Windows 11.)

I didn't want to transfer these old emails from my desktop PC to an IMAP server, because they weren't organized -- everything was in the Inbox. On the new laptop (and/or on the IMAP server), I am diligent in putting emails into appropriate folders.

My question is: how can I convert the desktop PC to be IMAP while yet retainomg my old email archive, so that I can access those old emails as needed on both desktop PC and laptop PC -- which will both be IMAP?

Hello,

I have been using Thunderbird for some time and it has served me well. I used it to manage my gmail accounts with encryption and so on.

Recently I have deleted one of my gmail accounts and when I launch it Thunderbird asks me to log in to that account. "Sign in to continue to Mozilla Thunderbird Email" And I am supposed to enter my email.

I have checked the account settings: the old account (let's call it old@gmail.com) is no longer there. I have also removed the outgoing SMTP server for the old account.

I do not know how to stop the app from asking me to log in to an nonexistent account.

My wife discovered today that all email had disappeared from her inbox! She doesn't know how or why and neither do I. She is running Thunderbird 1.15 under Windows 7. I have already tried the Windows restore function on the INBOX and it didn't work. Tried a number of other methods and none worked. In looking around the Thunderbird directory and noticed a bunch of files named nstmp-1, 2 3 and 4. nstmp-4 has this morning date-time on it and viewing it in an editor it seems to be a backup of the INBOX. Is this true, and can it be used to rebuild her INBOX.

Unable to export bookmarks file. When I go to 'Manage Bk Mks' it is blank and states 'no items' (see screenshot) but I have all my bookmarks in the in the usual left hand pane. I've asked this question before and received no response. Can anyone help please?

I use the android version of your email app. I love it, easy to use and almost use the "Unified" Inbox all the time.

It would be nice to nice to have this facility for any type of account.

Thanks

Refer to two images below.

Just loaded Thunderbird on a new laptop. It displays a list of messages with no headings, each message listing in two lines and acres of wasted space in the middle. See Image 1 (6300040).

How do I get back to a list of one-line entries with headings at the top of each of the columns (which lets me change the sorting direction)? It works so much better for me. See Image 2 (6300039).

Thanks in advance for your help.

Long-term fan

First I got problem.with my laptop. I went to a service shop, but the technician caused me to loose the old files of my e mails. I seriously need help to get my old e mails accessible

Hi

I'm trying to link my business email with Thunderbird but it failed to connect with my server .

Attached is a screen shot

Thank you Marwa

I have received an email from Microsoft advising that from a date in September third party apps will no longer be able to access outlook email accounts. Does this mean I will no longer be able to use Thunderbird - which has been my preferred email client for many years? Thanks Nigel

With about 60G of accumulated e-mail in several Microsoft accounts, I moved all accounts into T-bird and put most in local folders. This somehow became over 600G in size. Everything works and compacting seems to be getting done since it's been working some weeks now. Yet this ten-fold increase in size is unwieldy and very difficult to backup. Perhaps related, I notice that M'soft's "new" free Outlook app is present and perhaps running on this computer. And all the e-mails I send from my main Hotmail account are listed twice in the T-bird sent folder. About half of the times I start T-bird, I get a message saying that login to server outlook.office365.com with username xxxxxxxx@hotmail.com failed; the other accounts never do this. T-bird offers to retry, but that usually ends with a repeat of the same message. I've learned that if I let it open, with time, the e-mails do appear, though I don't know how or why. I've also been using Libreoffice successfully for months now though I doubt that anything to do with this. T-bird nicely solved the original e-mail oversize problem I had with Microsoft's size limitations and I'd appreciate advice on how to deal with what's happening.