Thunderbird Support Forum

Hi - My company turned on some additional security settings for connecting to M365. Thunderbird Windows successfully provides the needed Entra ID, that is required in our M365 environment now for access by registered devices. The state of the device, as being registered in Entra ID, doesn't seem to be able to be passed via Mac Thunderbird but does for Windows Thunderbird?

This is the error - the fact that it shows the Device as unregistered is the key item - Thunderbird needs to be able to send the :

        You cannot access this right now
        Your sign-in was successful but does not meet the criteria to access this resource. For example, you 
        might be signing in from a browser, app, or location that is restricted by your admin.
        More details

        Error Code: 53003 
        Request Id: a2ae545e-6d4a-40e7-aed8-31e252422900 
        Correlation Id: 0200d612-710e-42ea-82c6-2aa415f3062f 
        Timestamp: 2024-06-06T14:09:39.975Z 
        App name: Thunderbird
        App id: 9e5f94bc-e8a4-4e73-b8be-63364c29d753
        IP address: 136.226.19.80
        Device identifier: Not available
        Device platform: macOS
        Device state: Unregistered

Is this something that can be addressed? I am really disrupted by not being able to manage my email through Thunderbird...

Bob - ramartin@mitre.org

The Mozilla message explains your privacy and has "Dodnload Firefox" box; my wife has dozens! of them in identical tabs because she sometimes forgets to close them eaach time she uses TB.

They arrive every time she starts TB on Windows 10. They pile up unless she remembers to delete each one. She's running a Dell inspiron, Apart from this problem, all seems fine--she has the latest versions of both TB and Firefox, an IMAP connection to hotmail that works great. This didn't happen until the last month or so, she esimates.

How can we stop this? Her TB does accept cookies, but that won't stop these messages. I can't find a setting that affects this behavior.

The constant repeat messages are driving her crazy. Surely there is a way to stop them?

Greetings, and thanks, again, for all the nifty Mozilla stuff we've been using since the last century (and donating). Once upon a time, there was an add-on that allowed Thunderbird users to export a simple list containing account info including login names and passwords. I think it quit working around version 57 of TB. Since then, it would appear that several users have inquired about how to do that export, and the general answers are either "use the import/export function" or "you can't do that anymore, 'cause we don't want you to," or something equally off putting. As many users note, the Import/Export function is a shotgun approach, and doesn't really address the matter of getting username and password - let alone a simple list thereof. And it's not recommended for profiles over 2GB, which could be the majority of users, these days. And so, on to the questions: Is there now, in 2024, or will there be, a feature or add-on of Mozilla's Thunderbird that will allow a user to export a simple list of usernames and passwords to a readable file, like CSV or TXT or XLSX or ODT? If so, when? If not, why not? Thanks, again (again).

I got this weird error on my computer when trying to use Thunderbird after a power outage. ( see attached file)

All the Dreamhost server settings are good on the computer. I am is getting the emails on my Android phone, there seems to be some security issue cert with Dreamhost that is not satisfied.

I have read about uninstalling Thunderbird and re-installing to clear any glitches but just want to make sure there is no simple fix before I go and uninstall. Will this kill the whole application or will the profile remain and keep all the initial settings so I can get back to my normal setting once reinstalled?

Thanks

Ralph

I always use Mozilla Thunderbird for email. Today, it would not send outgoing email. Any email gives me a failed message: "Sending of the message failed. An error occurred while sending mail. The mail server responded: Spam detected by content scanner. Message rejected (ID 665754780026FB52). Please check the message and try again."

My ISP insists the problem is not with their server, and I need to have Mozilla correct it.

Some mails always end in spam folder no matter which settings I have tried for example collected adresses or check/uncheck spam settings. For a test I have two hotmail accounts. When I from thunderbird send mail from one to the other, it ends in spamfolder. But if I from the same mail account from outlook.live website send mail to the same account, it doesn't end in Thunderbird spam folder. Besides this many other safe and regocnized mailaccounts recently starts to end in spamfolder. Can any thing be done?

Hi, I´ve some Outlook accounts with two step verification login. Anytime I open Thunderbird I´ve to verify myself by selecting a number on my mobile. Is it possible that Thunderbird get´s directly to my outlook account without that veryfying process? Thanks for answering.

Our app sends an email advising the specified individual to note a series of images presented in three rows of nine. The rows display in Gmail via Windows->Chrome, via Android, and iOS with a Yahoo account.

But not in Thunderbird. This is a serious issue as I believe I have followed all the correct settings including in-line display, and yet for some reason, Thunderbird does not display the images.

Any suggestions are appreciated as I am baffled since Thunderbird has been my go-to email client for years.

I installed Thunderbird and downloaded the mail (IMAP server) to the mailbox, but at the same time the program deleted all the mail from the server!!! I can't find anywhere in Thunderbird how to turn it off so that the program doesn't delete messages from the server. Someone suggested that you should turn off "the selected folder will be available in offline mode" in the Synchronization tab. I did it, but it didn't help and I turned it on again. Now I don't have my messages anywhere, neither on my computer nor on the server. Rescue news from ten years - where are they????

I have an issue trying to configure a secondary email account, for a non-profit I do some work for. It was ok in the past, though I recall was tricky to set up on TB a couple of years ago. But now it has ceased to function after I migrated TB profile (successfully apart from this issue) no matter what I try. I’d be grateful for any suggestions. As is the case with many non-profits, there’s little tech support, but others can use the email account ok. I think it may be a TB issue as I have been able to set up the account ok with MS new Windows Outlook app (lame, but better than Mail…low bar). I’d rather have this account on my TB client along with the others I use. And the issue is replicated on two of my PCs. TB account set up reports “can’t detect settings from host server”. I found a support thread link text, which says “The failure to detect settings is rather common where hosted domains are concerned. Mostly because everything is done to a price and most of the things around encryption are done in a halfhearted manner. As is the server setups for mail. However by faithfully copying the settings from the provider as to domains server name and ports it should work.” So I did manual configuration – copied the settings from the successful Outlook set up, but no dice – all I get is server time out message. Settings are: IMAP server: mail.XXXX.org.uk Port 993 Security SSL/TLS [earlier working settings were STARTTLS port 143] SMTP server: mail.XXXX.org.uk Port 465 Security SSL/TLS [[earlier working settings were STARTTLS port 587] And using Normal Password for both; I tried Autodetect too but no good. I’ve see a suggestion that turning off the firewall (Norton) might work, but I’m reluctant to do that and doesn’t seem to make sense that would cause the issue. I found another suggestion that apparently works for some people - leaving password blank on setup. https://support.mozilla.org/en-US/questions/1399690. Before I try, are there any other suggestions or ideas? Trivial matter in the long run, but bugging me. Thanks

Hi,

I am facing an issue with Thunderbird.

I integrated my email address but there problem is the new message is giving "Undelivered Mail Returned to Sender" but I can reply and receive the emails.

Please guide me about it.

Many Thanks

First, I am supporting a family member, who has TB configured on two separate machines. Configuring for Comcast IMAP+SMTP, in the usual manner; nothing esoteric about that, all very routine.

Machine A seems to be working okay, no errors. TB up to date on this machine, connected over an ethernet wire, if that makes any difference.

Machine B, getting spam prompted over IMAP 1014 errors. No other information is provided than 1014.

I have tried dropping the account configuration hundred percent, restarting TB, re-adding the account configuration, to no avail. Still spam 1014 errors.

I did happen to notice TB needed an update, so I did that as well. Still 1014 errors.

I have also tried dropping that email saved password from the saved passwords, and responding to the subsequent re-enter password prompt. Also to no avail.

What if anything might have changed, and how can we contend with this? What is so corrupt, do we need to be mucking around in any AppData files, roaming files, etc?

We are not the only ones, apparently, to have bumped into this issue. Not sure if this is also Comcast specific, since a recent TB and/or IMAP specification change, i.e. maybe we try with a gmail account, for instance.

Wondering also, is it IMAP and/or Comcast somehow tieing Machine A to the IMAP and not releasing that association? Knowing a little bit about IMAP in this regard. And/or somehow now prohibiting Machine B+ from establishing a connection?

One of my two gmail accouns has suddenly become impossible to access (cannot receive, cannot send). T'Bird produces an Authentication has Failed notification, after a Google Window headed "Sign in to Mozilla Thunderbird Email" which refuses to go away. Clicking on the 'help' or 'privacy' options in that google window produces no more than a blank window but then "Sign in to Mozilla Thunderbird Email" reappears a few minutes later. My other gmail account doesn't have this problem, so I assume it's not gmail but it's T'Bird.

What's going on?

(BTW signing into this Support resulted in an email "New sign-in to Mozilla Support" warning "New sign-in to Mozilla Support to Firefox on Windows 10". Trouble is, I'm on Windows 11. Trivial maybe, but telling maybe.)

Hi, 3 weeks ago I suddenly could not log in to my email without errors.

First I get a Google screen "Choose an account" showing the three Gmail accounts I use. I select the first one.

"Mozilla Thunderbird wants to access your Google Account". This refers to calendars. I take the Allow option.

Then I get the message "Warning: Potential Security Risk Ahead

Thunderbird detected a potential security threat and did not continue to localhost. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details."

When I close this window I get another Google screen .

"Mozilla Thunderbird wants to access your Google Account". This refers to i) mail, ii) contacts, and iii) calendars. I take the Allow option.

Then I get the same message message "Warning: Potential Security Risk Ahead

Thunderbird detected a potential security threat and did not continue to localhost. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details."

This process cycles through the other two emails. Then I get and authentication failure message.

I have seen hints that this might be a certificate issue but I have tried in vain to find certificates stored in Thunderbird.

Any help approeciated.

Thanks

PaulM

Thunderbird 115.11.0 (64-bit) Edition Windows 11 Home Version 23H2 Installed on ‎10/‎22/‎2022 OS build 22631.3593 Experience Windows Feature Experience Pack 1000.22700.1003.0

Processor 12th Gen Intel(R) Core(TM) i7-1260P 2.10 GHz Installed RAM 16.0 GB (15.7 GB usable) Device ID 5E92FCAE-C72A-4252-8BD4-D8E95E052268 Product ID 00342-22036-83915-AAOEM System type 64-bit operating system, x64-based processor Pen and touch Touch support with 10 touch points

Thunderbird refuses to connect to Gmail with password. Fresh install of Thunderbird. New password (triple verified I'm using the same password) OAuth2 enabled Gmail account entered correctly, Thunderbird contacts Gmail, secondary authentication text sent and verified, refuses to connect.

Outlook Office 365 - works gmail.com - works Thunderbird - "Unable to log in at server. Probably wrong configuration, username or password"

Incoming IMAP SSL/TLS imap.gmail.com

Outgoing SMTP SSL/TLS smtp.gmail.com

ALERT ! wish to report an avalanche of emails from godaddy that are overwhelming my email box Tons of email under different names are coming from @registry.godaddy every day, the Junk filter is bypassed. A robot must be sending these one-liners using the flood volume as an attack. HELP!