Thunderbird Support Forum

I have not been receiving replies to adds I have on Gumtree, to my primary email address, denisj51@msn.com. Gumtree has advised me that my email client, which is Thunderbird, is identifying them as Spam, and is deleting them! I check the junk folder of that account regularly, and they are not sent to that folder. I would like to stop them being deleted. How do I do that ? Thanks for your help. Denis.

Hej Jag har installerat Thunderbird på en ny dator och då stannar e-posten kvar på servern fast de finns i Thunderbird. På den gamla datorn laddades de ner helt till Thunderbord. På den gamla datorn har jag version 115.11.1 (32-bitar) och där finns funktionen "Lämna kvar meddelanden på servern" att välja under serverinställningar och den rutan är urbockad. Den nya datorn har versionen 115.12.1 (64-bitar) och där finns inte den funktionen med. Hur gör jag för att Thunderbird ska hämta e-postmeddelandena och inte lämna kvar dem på servern. Tack på förhand. Johan

When I launch Thunderbird I get the following message:

Secure connection failed

live.mozillamessaging.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate has expired. Error code: <a id="errorCode" title="SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE">SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE</a>

This could be a problem with the server's configuration, or it could be someone trying to impersonate the server. If you have connected to this server successfully in the past, the error may be temporary, and you can try again later.

Or you can add an exception…

AND Thunderbird then automatically downloads emails without asking me for a password. I have just migrated to a new desktop computer (MSI CUBI 5) and this started immediately.

When I try to send email I get a message telling me my outgoing server does not have a certificate, but this doesn't appear to be Thunderbird's problem?

I'm not happy about any of this? Can you advise me please where I should be directing my request for help? It doesn't seem like it should be a Thunderbird issue, but the address includes the word mozilla so I am sending it to you...

Thanks for any help you can offer, I really like (and support) your software. Margaret

I have a problem with Thunderbird 115.11.1 with the POP3 server inbound.att.net. Someone on at at7t forum suggested changing from Userid/password to Secure Mail Key. I had previously set up two Keys with at&t, but AI have never activated them. I looked at one URL, and was able to change the settings for inbound.att.net. But I did not see anywhere to enter one of the Keys that I had generated earlier. When I tried to re-configure outbound.att.net, I did not see a OAuth2 option. I do not need to re-configure outbound at the present time, as I can send mail without a problem. But receiving mail does not work. Here is what I see in the error console log:

mailnews.pop3.246: Connecting to pop://inbound.att.net:995 Pop3Client.jsm:141:18 mailnews.pop3.246: Connected Pop3Client.jsm:295:18 mailnews.pop3.246: S: +OK Hello from jpop-0.1

Pop3Client.jsm:348:18 mailnews.pop3.246: C: CAPA Pop3Client.jsm:508:20 mailnews.pop3.246: S: +OK CAPA list follows

IMPLEMENTATION jpop-0.1

EXPIRE-NEVER

PIPELINING

RESP-CODES

TOP

UIDL

USER

SASL PLAIN XOAUTH2

.

Pop3Client.jsm:348:18 mailnews.pop3.246: Possible auth methods: XOAUTH2 Pop3Client.jsm:597:18 mailnews.pop3.246: Current auth method: XOAUTH2 Pop3Client.jsm:668:18 mailnews.pop3.246: C: AUTH XOAUTH2 Pop3Client.jsm:508:20 mailnews.pop3.246: S: +

Pop3Client.jsm:348:18 uncaught exception: initFromMail failed, hostname: inbound.att.net Prompter.sys.mjs:1231:17 mailnews.pop3.246: NetworkTimeoutError: a Network error occurred Pop3Client.jsm:369:18 mailnews.pop3.246: Connection closed. Pop3Client.jsm:395:18 mailnews.pop3.246: SecurityError info: Pop3Client.jsm:375:20 mailnews.pop3.246: Done with status=2152398862 Pop3Client.jsm:1486:18 mailnews.pop3.247: Connecting to pop://inbound.att.net:587 Pop3Client.jsm:141:18 mailnews.pop3.247: ConnectionRefusedError: a Network error occurred Pop3Client.jsm:369:18 mailnews.pop3.247: SecurityError info: Pop3Client.jsm:375:20 mailnews.pop3.247: Done with status=2152398861 Pop3Client.jsm:1486:18 mailnews.pop3.248: Connecting to pop://inbound.att.net:587 Pop3Client.jsm:141:18 mailnews.pop3.248: ConnectionRefusedError: a Network error occurred Pop3Client.jsm:369:18 mailnews.pop3.248: SecurityError info: Pop3Client.jsm:375:20 mailnews.pop3.248: Done with status=2152398861 Pop3Client.jsm:1486:18 mailnews.pop3.249: Connecting to pop://inbound.att.net:587 Pop3Client.jsm:141:18 mailnews.pop3.249: ConnectionRefusedError: a Network error occurred Pop3Client.jsm:369:18 mailnews.pop3.249: SecurityError info: Pop3Client.jsm:375:20 mailnews.pop3.249: Done with status=2152398861

Here is what I changed: Thunderbird: Account Settings --> Server Setings --> Security Settings --> Authentication Method Normal Pasword -> OAuth2

                                                   Inbound.att.net: Port 995 --> 587
                                                   Connection Security: SSL/TLS --> STARTTLS 
   

What do I have to do to get one of my two Keys into the inbound Thunderbird configuration? Thanks.

A while ago my long-time hotmail account stopped working on two computer with windows 10 and one with windows 11. Last night, I looked up an article that said I have to use Oauth2 instead of normal pw. I made that change on the windows 11 machine and a popup occurred that wanted the number from the google authenticator on my phone. I gave it that and it checks mail now just fine.

This morning I went to one of the Windows 10 machines and did exactly the same. I tried some different server names online and tried some, but after a while I started getting a little window that asked my email address and pw. I put my hotmail address in and got this message:

Microsoft Accounts or personal email addresses don’t work here. Make sure you enter your work or school account (e.g. user@contoso.com). If you want to reset a Microsoft Account password, click here.

Now this is the very same hotmail email that worked on windows 11 with the same server settings last night. It still works.

Now, on the windows 10 machine with those same settings, I get the blank extra window. The extra window appears, does not populate, and disappeared.

It is: https://login.microsoftonline.com/common/oauth2/v2.0/authorize?response_type=code&client_id=9e5f94bc-e8a4-4e73-b8be-63364c29d753&redirect_uri=https%3A%2F%2Flocalhost&scope=https%3A%2F%2Foutlook.office365.com%2FIMAP.AccessAsUser.All+https%3A%2F%2Foutlook.office365.com%2FPOP.AccessAsUser.All+https%3A%2F%2Foutlook.office365.com%2FSMTP.Send+offline_access&login_hint=redacted@hotmail.com

I had no opportunity to do what worked on the windows 11 machine just last night. I cannot check mail on hotmail on this windows 10 pc. I took all the updates available to Thunderbird and firefox. TB is 115.11.1

I'm stopped. Why would it work on one pc and not another? Oauth2 on the windows 11 asked for authenticator. On the windows 10 it never asks.

All the gmail entries & passwords deleted, remaining email passwords replaced, as of this morning.

I replaced them, and then so did they. I just yesterday deleted my online life... I'm sure just a coincidence.

Here's half of one they used: M.C555_BAY.0.U.-Co2UA6qeq4JOFgsvOCkdA**pHYS5XqT3TfRXLZAdnUxGM361xXXF0iCTeAaY5pXNyRoEu7KvIh3*uCkYXNAKRvbL7UnBYVnODYaRQ8e5lPvftncJgK1yNc9TzeqTMW1BCwqdeBAjmbGg

Suggestions? (Other than accept the dark side & sell your soul)