Thunderbird Community Forum

Hey guys,

So I am trying to create a rule that will delete emails on the server that are 360 days or older.

I know you can go into settings...

>> leave messages on server >>>>>>For at most ,,,,,,,

But from what I have read that only deletes emails on server from when they were downloaded into thunderbird.

I am new to thunderbird so that wont work for me.

So I went into message filter....thinking this would work

>>>>>age in days > is greater than > 360 days >>>>>>>>>>>Delete From Pop Server

But nothing happens???? Help!

Your input is appreciated

This morning, my email Inbox is empty. I use Thunderbird for four email accounts, and three of them are fine, but the fourth one has an empty Inbox this morning. I didn't (intentionally, anyway) move the emails anywhere, and they do appear to be in the All Mail folder, so I didn't lose them entirely. But I keep my emails mostly in my Inbox and they aren't there anymore.

Any ideas what happened to make them disappear and how I can get them back to the Inbox?

Thanks!

I have downloaded and installed Thunderbird Email on my computer.

I put in my name as requested. Enter my Gmail account and go through all the steps signing in only to get a message that there is an error and I cannot be signed in.

Extremely frustrating to not be able to use this app.

Will be uinstalling immediately.

To: Thunderbird Development & Support Team Subject: Gmail Account Wizard incorrectly configures SMTP, causing OAuth2 window completion failure

Dear Thunderbird Team,

I am writing to politely report a critical bug we recently identified during the automated account creation process for a Google Mail (Gmail) account. The bug prevents the Google OAuth2 authentication window from closing and ultimately halts the account setup process.

Environment Context Account Type: IMAP/SMTP (Gmail) Authentification: OAuth2 Description of the Issue When using the Thunderbird Account Setup Wizard to connect a new @gmail.com email address, the wizard automatically pulls configuration data for Google services. However, the configuration pulled for the outgoing server (SMTP) is consistently corrupted.

Specifically, the following variables are written to the prefs.js file:

IMAP Configuration: Generates correctly as imap.gmail.com with authMethod: 10 (OAuth2). SMTP Configuration: Incorrectly generates the hostname as literally ".gmail.com" (missing the "smtp" prefix) and assigns authMethod: 0 (None) instead of 10 (OAuth2). (e.g., user_pref("mail.smtpserver.smtpX.hostname", ".gmail.com");) Symptoms and Behavior OAuth2 Window Hang: Because the SMTP server address is malformed (.gmail.com) and cannot be resolved, when the user successfully authenticates in the Google OAuth2 pop-up and grants all permissions, Thunderbird attempts to finalize the setup against the non-existent SMTP gateway. This silent background failure results in the OAuth2 pop-up window spinning/hanging indefinitely with the message "Waiting for authorization". It never closes. UI Blank Dropdown Bug: If the user forces the wizard closed and attempts to view the new IMAP profile in Account Settings -> Server Settings, the "Authentication Method" dropdown is entirely blank (no text, no selectable options). This occurs because the crashing wizard also fails to inject user_pref("mail.server.serverX.is_gmail", true); into prefs.js. Without the is_gmail flag, the legacy UI is unable to map the internal authMethod: 10 integer to the "OAuth2" string in the dropdown menu. Working Solution / Workaround Used The issue is definitively tied to the automated wizard's database fetch/parsing mechanism. We were able to completely bypass this bug by closing Thunderbird and manually injecting the pristine configuration directly into the core prefs.js file:

Fixing the SMTP hostname to smtp.gmail.com. Setting mail.smtpserver.smtpX.authMethod to 10. Supplying user_pref("mail.server.serverX.is_gmail", true); to fix the UI rendering. Defining proper directory and directory-rel paths for the storeContractID. Upon restarting Thunderbird with the manual internal configuration applied, the OAuth2 pop-up window appeared on the first sync, processed the Google token instantly, and closed successfully without any hangs.

Conclusion Please investigate the ISP auto-configuration database logic that is currently generating .gmail.com as the SMTP hostname. This flaw breaks the entire OAuth2 token routing mechanism and creates a highly confusing infinite loop for everyday users trying to add their Google accounts.

Thank you for your hard work and for keeping Thunderbird an incredible email client!

Best regards.

Almost anything I try to do with Thunderbird, even replying to emails requesting advice, I come up with errors, such as:

Sorry, you have been blocked

You are unable to access thunderbird.net

upstream request timeout

upstream connect error or disconnect/reset before headers. reset reason: connection termination

Whilst exploring settings I managed to create a second duplicate "stgilb@optusnet.com.au" account/profile, ie two inboxes,drafts,sent,spam & trash. In trying to eliminate the duplicate I succeeded in creating a triplicate. How do I return to a single account/profile?

A solution would be greatly appreciated.

Thunderbird not connecting to server. It says timds out and an error occurred connecting to mobile.charter.net. I can neither send or receive emails. This started 8/20/2026

When replying to an email or sending a new mail I get the message :- An error occurred while sending mail. Server responded : You need to authenticate when sending mail from (ip address) Please check "message Recipient" and try again. How do I authenticate ? Thanks140.7.1

In TB 155.01 when I click on Delete the email leaves my Inbox but does not display in the Deleted folder. If I look at Properties in the Deleted folder it shows the correct number of messages in there but the messages themselves do not show in the right hand window. Thus there is no way of seeing what the messages are, just the total quantity in the folder.

Aloha. I'm helping a friend with setting up a new Windows 11 PC, and cannot get Thunderbird to connect to Spectrum's servers. I spent an hour on the phone with Spectrum support and they just gave up and said it must be an issue with Thunderbird. Here are the details:

- Brand new Dell 24 All-in-One EC24250 - Windows 11 25H2 plus all additional fixes. - All Dell drivers updated. - Thunderbird V155.0 64-bit

If I click on 'Get Messages' after a while I get: "Connection to server mail.twc.com timed out". I've gone into the config editor and changed mailnews.tcptimeout from 100 to 500 and still get the error.

In the Account Settings | Server Settings | Test server connection I get: An error occurred connecting to mail.twc.com:993.

I've tried this with both setting up a brand new account in Thunderbird, and also via copying the 'Thunderbird' folder from %appdata%\roaming from her old machine.

Email configuration (from Spectrum).

IMAP Settings Server name: mail.twc.com Port: 993 user name: abcd@hawaii.rr.com Connection Security: SSL/TLS Authentication method: Normal password

SMTP settings Server Name: mail.twc.com Port 587 Connection Security: STARTTLS Authentication method: Normal password

Can anyone help me troubleshoot this scenario?

Mahalo, Harry Z

This afternoon, without any warning, all my mail in every folder could not be displayed. This is the second time this has happened in the last month and a half. I have two mail accounts - one that goes through Yahoo and the other Gmail. No mail is displayed in either account.

When I run Thunderbird in troubleshooting mode, the mail does display. I then disabled the few addons that I use but that didn't make any difference. When not in troubleshooting mode, no mail is displayed.

Of course, there's "troubleshooting information" but that's way too technical for me to get anything out of it.

I've been a Thunderbird user for over 20 years and I would like to keep using it but this performance is discouraging.

What do I need to do to get past this issue? I'm assuming I'll be able to read an email response by using troubleshooting mode.

Thanks.

Hello everyone! I also had the error, it randomly started moving messages to folders. I deleted everything, reinstalled (155.0.1), started building message filters. I'm at 29 now. (Gmail account) now I'm not getting new messages. For every filter I get a message saying that the filter could not be applied. No messages are coming, anywhere. What's going on?

Здравствуйте! 1. Почтовый клиент стал показывать в папке "Входящие" по 10-15-20 копий одного и того же сообщения. 2. Когда-то была создана папка "Pending"во входящих сообщениях. Сейчас почтовый клиент сам по себе поместил ее в папку "Удаленные", причем во входящих двух разных почтовых ящиков. Создать эту папку как отдельную во входящих не удается. 3. Удаленную папку "Охрана труда" почтовая программа также поместила как отдельную папку в удаленных и воссоздает ее снова при запуске почтового клиента.

I added a new entry in my Address Book and sent a message to that person. I next tried to use Thunderbird to read messages and it locked up. No system shutdown/restart fixed that. Reinstall ofThunderbird did not fix it either. I have many stored messages that I do not want to lose, so I have not erased all about Thunderbird. What do I try next?

now i am getting mail but my dad and my brother both said they are sending mail and it says undeliverable I tried sending to my self and it came through I have Thunderbird through Comcast. i see mail in Comcast that is coming through so i do not know why. the only thing i could think of was they tried yesterday when the update was going through i received a mail at 7.15 this evening so i have no idea why it would bounce back did nothing to change anything

After a long explanation, I tried to add a file and lost everything. Starting over! After using TB for over 30 years, I accumulated a large number of personal folders to archive files to. Due to confusion on my part about pass words in Proton Mail and their Bridge, I had to reinstall my ProtonMail account into Thunderbird. Because all my personal folders were connected with the old "account" name, I didn't remove it, and the new addition seemed to be working fine.

After doing some house cleaning to remove duplicate and obsolete files, I wanted to move the folders attached to the old account name, under the new name. I thought I could carefully move my personal folders from the old account, back under the new Protonmail account. Sadly, that doesn't work like that. What I did find was that the original folders which come under the original "account", were created with an older version of TB, which put them in a folder on my HD. But the new default folders ("inbox", "draft", "sent" etc.) are mirrors of the Protonmail Bridge, which is NOT what I want.

So I need someone that knows how to either place the old folders back under the NEW "account", or how to create new folders that ARE on the HD, and then move the files from one place to the other.

Just to help clarify, here's the location of the old folders as per the "properties" info.

mailbox:///E:/thunderbird data/thunderbird/yetudx3p.default/Mail/Local Folders/Friends & family

You can see the address for this folder is on my Drive E: I can go directly to that address on my drive E and see each of the files.

imap://gshantz%40protonmail.com@127.0.0.1/Folders/2009

This folder is from the NEW account of Protonmail - bridge, and is obviously the web address of Protonmail. It is NOT editable, unlike the above location on my HD E:.

Any help or suggestion would be greatly appreciated, gshantz