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Since Friday I have not been able to use thunderbird. I can open it but it wont connect to Virgin.com I have checked all settings (click on test connection it states good) then every five minutes when it try's to connect I get the following message (email address removed)

Login to server pop3.virginmedia.com with username ******* failed

I still get mail on my phone so it's down to a Thunderbird issue I believe. Tried to reinstall same issue, tried a new account and wont allow me to authenticate.

PLEASE can someone help - have a load of work to do but can't get on. Thanks in advance David.

After many years of using Thunderbird I am now considering ditching it. I am continually getting the Authorisation Failure message when trying to open Thunderbird. Why does this keep happening? It does not happen on my Android devices, just on Windows 11. I have tried deleting all three gmail accounts and re entering them. All is fine until I close down Thunderbird and then open it again. I run Norton 360 and have tried taking off Norton email security, but that didn't work. Any ideas, please?

Xfinity email service required me to change my password (security issue?). I went through the process but when I attempted to change my password in TB, it required me to change both the imap and smtp servers separately.

Apparently this is normal for TB. But this is radically different from other email systems. Most allow me to change the password once and it propagates to both the imap and smtp servers.

Am I missing something. If not, why does TB do it this way? This is extremely frustrating and unexpected for many people, I would think.

Oh, this is especially frustrating because I'm in a situation where two of my three Xfinity email accounts are repeatedly requiring a password change. I'm still trying to get to the bottom of that with Comcast.

Hello Due to a massive cluster**k this morning, I changed my password by accident I think I've now got everything working again, except that Thunderbird cannot sign in to my Google Account What I don't understand is that I have a password with normal and special characters and numbers, but the Oauth2 password is very different of course How do I know what to change my Oauth2 password too? Or perhaps the question should be how do I now generate a new one that goes with my new "normal" password Thanks in advance for any help

after the last Thunderbird update a username/password request pops up: "Authentication Required" cloud80.hostgator There is no Hostgator account so the only option is "cancel" only then will Thunderbird download emails. how to remove this https//cloud80.hostgator request?

MY second email account (droulston@btinternet.com) stopped working 3 days back (it has been OK for many years). I tried uninstalling and reinstalling but my password was not accepted.

Thunderbird won’t open because it wants a Primary Password which I have never had to do. I went on another computer (the one that I am currently using) and generated a password for Mozilla. I tried that but it still would not open. I have restarted the computer 3 times. When it asks for the pass word, I have entered the new one for Mozilla with no success. I have tried the one for the main opening of the computer with no success. When I close the small window that asks for the Primary Password, the spinning beach ball of death shows up and eventually (maybe 10 minutes) it has to be forced to quit.

Hello,

We need help with Mozilla Thunderbird and OAuth2 access to Google Workspace accounts. This worked for years and recently started failing.

Setup — two SEPARATE Google Workspace organizations, in the same Thunderbird profile:

Workspace A — egkt.hu (separately administered) → does NOT block Thunderbird. Works fine on a clean machine where it is the only account. Workspace B — egyensulyintezet.hu (a different organization, different admin) → blocks Thunderbird with admin_policy_enforced.

Already tested / ruled out (NOT a client, machine or network issue): - A personal @gmail.com account (no Workspace policy) sends perfectly from the same Thunderbird. - egkt.hu works standalone on a clean macOS machine. - No antivirus/TLS interception (Defender scan clean, hosts file default, certificate valid), no proxy (system + Thunderbird), TCP to smtp.gmail.com:465 succeeds, fails on both office network and mobile hotspot, ports 465 and 587.

Our questions: For Workspace B (egyensulyintezet.hu): please confirm this is the API controls → App access control policy blocking third-party apps, and advise how to mark the Thunderbird OAuth client ID (above) as Trusted so users can use Thunderbird. Is it expected that a blocked account from one Workspace can interfere with the OAuth login of an account from a separate Workspace in the same Thunderbird profile? If so, how do we prevent that?

Thank you, Sebastian

Thunderbird keeps stating password or user name incorrect. This is on my new lenovo computer. I have cut and paste, entered manually and used last all of which work on my other three computers. My feeling is all the junk that Microsoft now puts in windows to try to force people to use only their products.

Thunderbird keeps stating password or user name incorrect. This is on my new lenovo computer. I have cut and paste, entered manually and used last all of which work on my other three computers. My feeling is all the junk that Microsoft now puts in windows to try to force people to use only their products.

I changed my password on my email account and TBird thought it was still connecting, but not finding anything. Following some advice, I deleted the password in TBird. Now I can't figure out how to enter the new one.

Your windows application just refuses to let me add hotmail accounts, it completed the verification successfully, but then denied access on the final step over an "Authentication error" seconds after confirming that the authentication was fine

My e-mail goes out from Thunderbird just fine. However, I keep getting this message: Login to imap.mail.att.net for user [my email address] failed. This started happening on Saturday, August 29.

Thunderbird for NixOS nixos - 1.0

I could not figure out how to provide a log at all. If there is a way, please let me know and I will provide one.

Whenever I try to log in with gmail, I get stuck on this dead end:

1. Set up gmail server config (because my email ends in @vcu.edu, however I have tested this with a proper @gmail.com email and observed the exact same behavior)
2. Get propted to login with google, which works
3. Get to the "Mozilla Thunderbird Email wants access to your Google Account" page, select all and hit continue
4. get redirected to `http://localhost:35141/?state=<string of chars>&iss=https://accounts.google.com&code=<another string of chars>&scope=https://mail.google.com/%20https://www.googleapis.com/auth/carddav%20https://www.googleapis.com/auth/calendar` This page does not load, I just get a "unable to connect" error
5. get a notification stating "Authentication failure while connecting to server `imap.gmail.com`
6. get ANOTHER prompt to log in with google, exact same thing happens

please note that the port is random and is different every single time. also, google does not register that I have allowed Thunderbird access to my account, and it prompts me again every single time. Open ports: ``` sudo ss -lntup [sudo] password for jane: Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process udp UNCONN 0 0 192.168.122.1:53 0.0.0.0:* users:(("dnsmasq",pid=2224,fd=5)) udp UNCONN 0 0 0.0.0.0%virbr0:67 0.0.0.0:* users:(("dnsmasq",pid=2224,fd=3)) udp UNCONN 0 0 0.0.0.0:33289 0.0.0.0:* users:(("librewolf",pid=185950,fd=164)) udp UNCONN 0 0 0.0.0.0:35410 0.0.0.0:* users:(("librewolf",pid=185950,fd=161)) udp UNCONN 0 0 0.0.0.0:52393 0.0.0.0:* users:(("librewolf",pid=185950,fd=218)) udp UNCONN 0 0 0.0.0.0:21027 0.0.0.0:* users:(("syncthing",pid=1850,fd=19)) udp UNCONN 0 0 0.0.0.0:54112 0.0.0.0:* users:(("syncthing",pid=1850,fd=33)) udp UNCONN 0 0 0.0.0.0:5353 0.0.0.0:* users:(("avahi-daemon",pid=1148,fd=11)) udp UNCONN 0 0 0.0.0.0:41088 0.0.0.0:* users:(("librewolf",pid=185950,fd=169)) udp UNCONN 0 0 0.0.0.0:59247 0.0.0.0:* users:(("librewolf",pid=185950,fd=132)) udp UNCONN 0 0 [::]:44815 [::]:* users:(("syncthing",pid=1850,fd=29)) udp UNCONN 0 0 *:1716 *:* users:((".kdeconnectd-wr",pid=185637,fd=15)) udp UNCONN 0 0 [::]:21027 [::]:* users:(("syncthing",pid=1850,fd=34)) udp UNCONN 0 0 [::]:5353 [::]:* users:(("avahi-daemon",pid=1148,fd=12)) udp UNCONN 0 0 *:22000 *:* users:(("syncthing",pid=1850,fd=15)) tcp LISTEN 0 4096 127.0.0.1:8384 0.0.0.0:* users:(("syncthing",pid=1850,fd=17)) tcp LISTEN 0 32 192.168.122.1:53 0.0.0.0:* users:(("dnsmasq",pid=2224,fd=6)) tcp LISTEN 0 4096 127.0.0.1:8080 0.0.0.0:* users:(("systemd",pid=1,fd=847)) tcp LISTEN 0 4096 127.0.0.1:631 0.0.0.0:* users:(("cupsd",pid=1814,fd=4),("systemd",pid=1,fd=997)) tcp LISTEN 0 50 *:1716 *:* users:((".kdeconnectd-wr",pid=185637,fd=16)) tcp LISTEN 0 4096 [::1]:631 [::]:* users:(("cupsd",pid=1814,fd=8)) tcp LISTEN 0 4096 *:22000 *:* users:(("syncthing",pid=1850,fd=21)) ```

I believe this is all the information i can provide. Firewall was disabled for testing. I cannot log into either my school or personal gmail accounts.