Thunderbird Support Forum

Thank you in advance for any help. I am using Thunderbird 115.12.2

I'm on IMAP. I having a working knowledge of Thunderbird, but not a whiz by any means.

Since I have both personal and business emails, I keep them historically. I delete what I don't think I'll ever need to refer to.

When my email storage, gets into the 90's, I get nervous. I go through and delete as many emails as possible, and sometimes manage to get the percentage to go down 1 percent.

So... I'm a little confused. I thought that perhaps this was syncing with the Comcast server, and that the percentage was not for any Thunderbird storage. Is Thunderbird storing on another server?

What should my settings be, so that I can maintain all my email on my computer? I don't need to store it on any server. I'm afraid to make any adjustments for fear of losing email on my computer.

Is there someone who can walk me through this process in steps I can understand? LOL

I know I am set up with IMAP.

Thanks so much!

Wayne

Hi Cannot send emails via Thunderbird. Sending an email via grahamg.d@ntlworld.com failed (as do my others addresses - not tested this time) with message "Mail server responded - Authentication Code Require (VM401). can you help please? Have been having email problems with Virgin Media for some time now and it has got worse I can receive emails

I have seen some posts on this request but unsure if anything has been done to add/use if already there a feature to make an email account "inactive". I have several email accounts set up in Thunderbird but do not use them much but don't want to delete the account but don't want to have to have them active either. Any update on this issue is appreciated.

Several upgrades ago, I created message filters in Thunderbird to forward emails received from specific senders to other email accounts that needed to get copies. While running version 115.12.1 32bit on Win 10, I had need to delete one of the filters. When I went to Menu Bar > Tools > Message Filters the Message Filters window does NOT show ANY filters regardless of which account (I have 20 and checked each) is selected. I have also searched my HDD, located all copies of msgFilterRules.dat and opened ones that might be related to the account in question. ALL of the msgFilterRules.dat files that I checked had only 2 lines.... version="9" and logging="no", except for the problem account where I had turned on logging and the .dat file showed "yes". I also went to yahoo and checked to see if I might have created the filter on the server side. However, according to yahoo, they discontinued the forwarding filter in 2021, so it's not happening there. I need to know how to find the forwarding filters and edit them.

As of Sunday, Thunderbird can no longer reach my ATT server to download email. It has behaved for ten to fifteen years. Last time someone at ATT fixed it. I have been on the phone or on screen with ATT most of my waking hours since Sunday. (In the process I lost my internet, my landline, my cell connection, etc.) Everything is restored except the connection between Thunderbird and ATT. Everyone thinks changing my password will do it. Done it four times. It gets me into the ATT mail. I have replaced the password in Thunderbird settings with it to no avail. Is there anything you can think of? Not only is Thunderbird more attractive than ATT, I have thirty years of mail boxes there, a continuation from Eudora. I will appreciate your wisdom.

My calendar is Baïkal 0.8.0 running an a debian 10 server. My thunderbird is 115.12.0 (64-Bit) running on Ubuntu 22.04.4 LTS My other devices are two thunderbirds 115.12.0 (64-Bit) running on Ubuntu 22.04.4 LTS and aCalandar 2.8! running an Android 14

It does not matter on which client I add or change calendar entries then synchronize them (I can see on my Baikal dahboard, that the synchronization has succeeded!) the other thunderbird clients don't show the changes, even after explicite synchronization, only after unsubscribing and then new subscribing.

Please advice for help!

Thanks in advance

I hope someone can help, I've changed all the settings in Thunderbird for my whole family's emails (hotmail.co.uk, hotmail.com, live.co.uk) from Normal Password to OAuth2. All incoming and outgoing servers are exactly the same as Microsoft advised. None of my accounts work, neither for sending or receiving.

I removed one account and tried to re-add it (that was the advice given if the first method didn't work) but when it tries to check the password, it takes forever. I've tried to manually configure it but it wouldn't download any folders or emails. I removed it and tried to re-add it but have been unable to do even that.

My default account hasn't been able to send more than 25% of emails for a few weeks. I'm up to date with all updates and I've restarted Thunderbird and my laptop countless times.

Can anyone point me in the right direction please?

Please Someone help ?

I have followed all the suggestions I can find, but my Thunderbird Calendar will not sync with the Outlook Calendar on Windows 11. I am using TB Sync, but every time I try to add my Outlook Calendar ? It refuses to accept my Password, even though it is correct, and the User name and email are too ! It shows as error code 401, and cannot authenticate ?

I have tried a suggestion to create an 'App Password' to use in my Microsoft account, but the options described do not exist in my account !

Can anyone please help ?

I use Thunderbird 115.12.2 (64-bit) with Hotmail, using a local account on Windows 10. Microsoft is introducing 'modern authentication' on Hotmail, and I want to be ready for this, but I cannot follow the guidance at https://support.microsoft.com/en-gb/office/modern-authentication-methods-now-needed-to-continue-syncing-outlook-email-in-non-microsoft-email-apps-c5d65390-9676-4763-b41f-d7986499a90d

If I try to alter my existing Thunderbird Account Settings for my Hotmail account, the authentication method for Outgoing Server (SMTP) is shown as Normal Password but there is no option to change it to OAuth2. If I delete and recreate my Hotmail account in Thunderbird, I get an error message from Microsoft saying that I cannot log in because my browser is not set to allow cookies -- even though I believe I have set both Thunderbird and Firefox (my default browser) to allow cookies.

Updated from Windows 7 computer to a new HP running Windows 11, downloaded Mozilla thunderbird from my old computer I had used it successfully for years, & received all my In-box email but nothing was received in my Sent box. The Thunderbird application works as I sent myself an email and received same, but the entirety of my sent email history never arrived. What to do?

I have two problems tha occur when using the Unified Folder tree view.

1) The view of Local Folders that appears in the Unified Folders view (which I use and require) has lost all subofolders except for Outbox. In particular, it does not show Sent Copies which is folder I rely on.

However, Sent copies and several other subfolders for Local Folders are visible in the All Folders View. As a workaround, I am currently set the tree view to show both Unnified Folders and All Folders to have access to Sent Copies in local Folders...but this is a pain because it means I have to scroll far, far, down in an excessively long folder tree to find Local Folders/Sent copies.

So the solution I'm seeking to number 1: Restore Sent Copies, and other normal subfolders, to the view of Local Folders that appears in the tree when the view is set to Unified Folders. (Closing TB, Deleting the Smart Folders from the Mail folder and re-starting TB does not solve or have any effect on this problem. See my conjecture at end below).

Second problem is: I'm seeing a big handful of duplicate emails showing up in the Unified Folder Sent folder. I've cleared up most of this problem by deleting Smart Folders from the Mail Folder in the profile...but this repair fixes most, but still permits a handful of duplicates to remain, especially in the Sent folder. I have been running TB happily for maybe 10 years. Current setup is Windows 10 on a Lenovo desktop....my two mail accounts are Hotmail and Gmail.

I'd be very grateful for assistance with these problems.

My conjecture about these problems: They arose in past month while there were a lot of starts and stops and edits of settings for TB in past couple months in order to keep TB connecting to Hotmail. That finally got solved a week or so gao... but my conjecture is that some program crashes thar arose while editing TB sedttings may have contributed --at least to the missing subfolders n the main or Unified view of Local Folders.

I recently patched to Thunderbird 115.12.2, and discovered that threading has been turned on everywhere. Reading through the forum, I disabled threading by default in the config editor via mailnews.default_view_flags, and manually went through every folder setting "View" -> "Threads" -> "Ignore threads".

However, it appears that disabling threading is only honored for the inbox. Setting "ignore threading" on any other folder is ignored, and Thunderbird continues to thread.

For example here is the "Sent Mail" folder with "ignore threads" set (see screenshot) and it still displays with threading. Apparently, "ignore threading" only works with the inbox. I would like threading disabled on all folders, not just the inbox. If there was a switch to disable threading universally, that would be easiest for everyone who dislikes threading.

Thanks in advance. John N. jnyhuis@gmail.com

From Sept-16-2024 Microsoft will deprecate Normal Password and require OAuth2 authentication on its email accounts accessed from Thunderbird and other clients.

I'm trying to convert my hotmail accounts on Thunderbird to OAuth2 authentication.

Server Settings Authentication can be set to OAuth2 because OAuth2 is an option in that menu.

But SMTP Server Authentication cannot be set to OAuth2 because OAuth2 is not an option in that menu.

Both Connection Security methods ( Inbound and SMTP ), are set to STARTTLS.

See screenshots, thank you.

Heya:)

I am a webdesigner and I'm currently designing a website for a client that uses Thunderbird for his mails.

Previously, Domain, website, and email had been hosted with the former agency.

Now we are gonna split this up into 3 different providers:

Webhosting: Squarespace Domain hosting: Cyon.ch E-Mail hosting: Would be great to keep using Thunderbird :)

How can I ensure that my client can still use Thunderbird? Do I just need to change some DNS-records? Otherwise I will have to switch to gmail :(

There's an article that says we can change where attachments are stored by going to tools, options, attachments. However, I have no "options" under "tools." Thanks in advance.

I have a Windows 10 pc, which is current with all Microsoft and manufacturer (Lenovo) updates. Thunderbird won't run since the last update. It just gives a message saying, "Your computer must be restarted to complete a previous upgrade of Thunderbird. Do you want to reboot now?" After several reboots, I have given up. A support forum solution from 4 years ago recommends deleting a file (global-messages-db.sqlite) at a location (C:\Users\user\AppData\Roaming\Thunderbird\Profiles\8charstring.default) that seems not to exist (hidden?) on my pc. What do you suggest? Thanks.

I'm using Thunderbird 115.10.1 and Windows 11 Pro. Thunderbird has suddenly started sending my partner's emails to Trash. We've been emailing fine for years before this. She has not changed anything in her emailing. I've closed and re-opened Thunderbird. Her emails are not marked as Spam and I have marked some of them as 'not junk'. Anyone got any ideas? I can't seem to find reference to other people having this problem.

Microsoft sent email last night announcing the end of "Normal Password" for Hotmail, and warning that Hotmail would REQUIRE "modern authrentication" beginning 9/16. I have personal desktop subscription to Microsoft 365. I have set Microsoft account to 2FA and checked in Tbird that cookies are enabled.

I have spent hours and days trying & failing. With server imap-mail.outlook.com using OAUTH2, Thunderbird won't sync and shows message saying that server doesn't support the authentication protocol please enter another one. With 2FA still turned on and using Normal Password setting and entering an App Password from Microsoft, the Imap connection is fine about 85% of the time, needing re-entry of the App password about once a day or so (usually requires several tries until App Password gets accepted.)

The 0AUTH2 fails with Norton Smart Firewall turned Off or Turned On-makes no difference.

(Sending email with Outlook and 0AUTH2 DOES work okay.)

I've also tried Imap connection with a different server: Outlook.office365.com, using 0AUTH2.

In this case, Tbird shows me a Timeout error and never makes an Imap connection to the server.  

I've been limping along with the app password, and "normal password" authentication, but now Microsoft announces they will stop accepting connections that are not 0Auth2 ("modern authentication") from Tbird or any other software after 9/16. The clock is ticking. I've tried every remedy I've seen online from Tbird or from Microsoft. Nothing has yet allowed a QAUTH connection for Tbird to a hotmail IMAP server. Please help! !

I can't SEND on Thunderbird as of Update to Version 115.12.1 on 6/19. I was able to SEND on June 18th and left town for a week and when I came back could not Send. That could be a coincidence. Have Windows 11, with Defender Firewall and Security virus protection. I have TB version 115.12.2 up to date. I have checked with Spectrum for the correct configuration and currently I have as Description: SMTP Server (on top line); Server Name: Mail.brighthouse.com and Port 465, No Authentication and SSL/TLS. My User Name: e-mail address ends in @tampabay.rr.com and that is the same as shown on incoming server.

My husband just downloaded TB program on his Windows 8.1 which is my old computer that I've been running TB on for 15 years without a hitch!! ''''And he also cannot SEND.'''' It's very frustrating - we've tried changing server settings since Spectrum uses not only Brighthouse (which is the one they say covers the Tampabay.rr.com address) but they also use Mobil.charter.net and also TWC.com. I've tried changing them up but nothing works. I've tried changing Ports and anything I could change I did, but nothing works. I did get a couple of error msgs but they didn't help. Brighthouse timed out and another msg was saying that the email address I was sending as had to match the email address of the authentication and that didn't make sense as I have only had one address & (typed correctly in all places). I have called Spectrum more than once and asked for an upper level, however, they were no help at all saying they have no resp. for 3rd party etc. I HOPE YOU CAN HELP SOLVE THIS MYSTERY. Thank you!

Tabatha