Thunderbird Support Forum

I've been trying out Thunderbird and Spark for the past few weeks, and decided to go with Thunderbird to replace Windows Mail. After uninstalling Spark, I changed all my email passwords, and now Thunderbird can't connect. I deleted my Google and Xfinity email accounts from Thunderbird, then closed and reopened the program, but I'm still getting this error from Google when I fill in the credential info it automatically asks for when re-adding it to my account:

"400. That’s an error.

The server cannot process the request because it is malformed. It should not be retried. That’s all we know."

On the "set up your existing email address" page in Thunderbird, I'm getting this error (see image), even though the copy/pasted password works fine when logging directly into Google.

I also can't reconnect to Xfinity at all. The 3rd party box is checked in their system, but when Thunderbird tries to connect, it looks like it's auto-filling and submitting a password on my behalf, without stopping on that screen so I can change it.

I did this: https://support.mozilla.org/en-US/kb/password-manager-remember-delete-change-tb

And tried all of the suggestions on this post: https://support.mozilla.org/en-US/questions/1434503

What am I missing?

Have used a Onetel e-mail account for a number of years.

Occasionally, the outgoing server drops out so messages can't be sent only received.

When trying to reconfigure with correct port numbers etc it will never reconnect straight away and there is always a long process to get it up and running again which always seems different every time.

I can never manage this by myself and always have to get help in. This has baffled the best brains in the business so any help or advice gratefully received.

Hello, I use Thunderbird portable. I imported as Imap an existing account at Infomaniak.com but all the personal folders and subfolders were missing. No problem, just right-click on the account and choose "subscribe" ("s'abonner" in French), ticking all the proposed folders. So in IMAP it works, but if you set the account as Pop3, the "subscribe" function doesn't appear. I need Pop3 for an account to be imported into Thunderbird. How can I do this ?

Thanks for your help !

Hi, I am running Thunderbird v. 115.9.0 on Windows 10 on my desktop. I have been forced by Rogers in Canada to migrate my internet service from their legacy internet service to Rogers Ignite with its Ignite (Comcast) gateway. My email accounts were supposed to be migrated automatically, but, for reasons unknown, were not, and a tech support representative had to migrate them from the old legacy service to Ignite. After that was done, I opened Thunderbird, and was asked to authenticate my 2 Rogers/Yahoo email accounts, one of which is my primary account, the other a secondary account. I was asked to authenticate the secondary account first, which went well. I then clicked on my primary account in the left-hand pane and was again asked to authenticate, but the dialogue box showed it was for the secondary account. Thinking that this secondary account authentication was just being repeated for no particular reason, and not thinking that the email address in the authentication request box could be changed, I clicked Agree. My primary account is now showing the exact same emails as are listed in the secondary account, and I'm extremely concerned that I will not be able to recover all of the thousands of emails in my primary account, many of which are business-related. When I log into my primary account on the Rogers/Yahoo mail website, the emails in the primary account are still showing, so I know they are still on the Rogers IMAP server. However, I really want to continue to use my primary account on Thunderbird. I'm not sure if I should delete the primary account and recreate it - the Rogers support tech said that deleting the account may result in an issue where my current password for a re-created primary account may not be recognized, so I'm leaving things as they are until I hear back. It the advice is to not delete and recreate the account, what steps can I take to recover the emails on my primary account in Thunderbird. Thanks in advance for any help and advice that can be provided. LES.

I recently had to re-install Windows. I saved my Thunderbird profile. I re-installed Thunderbird and when imported my profile, I could retrieve my messages but could not send messages. I attempted to change the settings and wound up creating two additional Pop3 accounts. Now I can't send or retrieve messages. My provider is Charter/Spectrum. I have tried all the settings they suggested. How do I get out of this fix? Thanks.

Geoffrey Bennett

Sending emails hit and miss. Sometime goes right out, other times I get this "The message could not be sent because the connection to Outgoing server (SMTP) smtp.office365.com timed out. How do I cure this.. keep in mind I am very close to computer illiterate..

There are two "bad email" files in Thunderbird: JUNK and SPAM. I'm still not clear on the difference.

For JUNK mail, TB gives us the option to select "NOT JUNK". Good.

But for SPAM, I cannot find the option "NOT SPAM"

1) Why are there separate SPAM and JUNK directories? And why are they managed differently? This seems terribly non-intuitive and inconsistent and just strange.

2) How can I train SPAM filter to not flag good email from trusted senders? For instance, I get email from my wife many times a day for many years. Today, TB put her email into SPAM. Isn't there a simple command to "white list" a sender's email address?

My Thunderbird stopped receiving emails. I am on a Mac. I am posting here because I looked through the list here. Others had the same problem but the conversation is now archived. I tried the offered solutions and they didn't work. So having just fixed mine, I'm posting my solution. Go to System Settings. to Passwords. Unlock Passwords by signing in. There you find your email service listed. Click on it and check that that password matches the password on your account on your email services website. If it doesn't, fix it. Then open Thunderbird on the menu bar at the top, go to Settings ( not Account Settings.) Go to Passwords, to Saved Passwords, click on that and it will show you a list of your saved logins. Below the list, you can click on Show Passwords to see what's there. I had a bad password in there. (I had more than one password that had been saved for Thunderbird.) I deleted all Thunderbird passwords. Then I closed and reopened Thunderbird, clicked Get Messages, filled in the correct password when asked. Bingo. My email downloaded into Thunderbird.

I have several email accounts; and they are all set up the same way on Firefox, and I have checked that that is so. But on one of the email accounts the "sent" file is missing. I have checked the "place copy in Sent..." In the subscription list "sent" does not show up for this account

Do you need more info ?

What can I do / check ?

Thanks, Dieter

Good afternoon to all.

I use Message Filters to automatically send certain emails to two specific folders upon receipt, based on some defined rules (mainly who the sender is). Yesterday, I accidentally clicked "Run Filters on Folder", and the actions for my filter rules ran on every folder in my account, including my Archive folder. I could not find a way to stop the action once it started, so hundreds of archived emails were pulled out of the Archive folder and repopulated into my two specified folders. In each of these specified folders, I had a handful of emails stored in order to be able to come back to them as reference or to deal with later; I remember what some of these emails were, but I don't necessarily remember all of them, and now they're mixed in with the hundreds of emails that were brought back from the archive.

So, I have two main questions:

1. How can I prevent this from ever happening again? Is there a way that I can tell the message filters that a filter should never be run on archived messages?

2. Is there a way I can "undo"/reverse what happened, so that the previously-archived emails are sent back to the Archive? Or is there at least a way to identify which emails were in the two specified folders before they were inundated with all the messages from the Archive?

Thank you.

HI Mozilla,

I logged in my email account via thunderbird yesterday 04/16/2024, and all the emails retrieved since 03/16/2024, it looks like only 1 month emails retrieved. My email account set up on 02/27/2024, but I don't get all the emails from 03/15/2024 to 02/27/2024. I used pop - hwhzpop.qiye.163.com 995 and smtp- hwhzsmtp.qiye.163.com 465 to log in Foxmail server successful, and pop-pop.qiye.163.com 995 and smtp- smtp.qiye.163.com 465 to login outlook server successful. Could you help me to fix this issue? attached screenshot is the 1st email of 03/16/2024 retrieved.

thanks

Sean

I have an issue with using newgroups via NNTP server in Thunderbird. News only load during startup of the program. Whenever the option Get Messages is chosen later, or when it is automatically run by the program, the process seems to get stuck in a loading state. In this state neither can new messages be read (the headers seem to be there and are shown, but the body of the message isn't), nor can new messages be sent (message sending gets stuck in status "Assembling Message")

This has been the case for a few releases already, and is currently present on 115.10.0 (64bit)

Has anyone seen a message similar to this when trying to attach a document, usually a pdf to an email?

O:\XXXXXXXXXX.pdf could not be opened, because the associated helper application does not exist. Change the association in your preferences.

Also, when someone send me an image file, I can't open it directly from the email. I have to download it and then open it. This isn't as big of an issue as the above, but I thought I'd ask it too.

Thank you

Windows 10 Thunderbird 115.10.0

When I'm writing a new email, I receive several copies of it in my inbox without explanation. It's a recent situation and I can't find a solution. Can you help? Thank you. freiroma@sapo.pt

OS is Win 10 64bit TB is 78.4.0 (32 bit) (is that a conflict?)

For NO known reason TB had to be restarted. Opened, BUT only one folder, NOT the Inbox, is displayed. Cannot see NOR access the Inbox, nor any folder (none displayed). Restarting TB produces the same result every time.

If searched any - all TB headers / options. HELP & support yield no clue(s) nor solution(s).

I use Thunderbird as a central repository for 5 different email addresses. Recently 1 of them stopped getting Sent messages that were created on Webmail or my Phone. I used to work fine, now it doesn't. This account is the only one I have that is set to POP3; the others are IMAP.

I'd change the settings to be IMAP but don'e see how to do that. And, I don't want to lose any messages and would like to capture the ones that have not been captured.

Any thoughts?

Thunderbird auto updated to 115.10.1 and now it is behaving strangely.

1. The Message Filter has "Junk" at the bottom of the list of filters and anything that is not sent to a folder gets sent to the Junk folder. Instead all the junk is going to the Inbox.

2. Folders that have new email show up in blue highlighted folder as they should. But if I select those emails and read them, they remain highlighted but without the blue color.

3. Sometimes when I delete an email after reading, it deletes for a moment and then returns to the folder as unread. Multiple attempts to delete fail.