Thunderbird Community Forum

Hi, I paid £7 donation in order to be able to download Thunderbird on my desktop but I couldn't set up my email account and hence I would like a refund. the email account I was trying to set up is [edited] @radorris.com which is on dynadot host.

Needed to ire install thunderbird email and could not get past the "donation" page Paid a "donation" and still cannot get past the donation page The release channel button did nothing Am thinking the donation is a scam How Can I use thunderbird for emails Margaret

I bought Thunderbird because Gmail kept telling me I reached my 15gb limit. I thought I could transfer my emails to my local hard drive thereby freeing up my Gmail account. Now Thunderbird is saying I have reached my limit as well. Is there a limit on transferring emails to your hard drive? What am I doing wrong?

When I try to delete mail from Deleted folder (even if there is just 1 email), the thuderbird gets unresponsive. Same when i try to select few emails (headers) for deletion or moving to another folder. Running on Windows 11

I cannot find a way to sync my tasks on my thunderbird Windows desktop with my android phone.I have tried byrdiesync, but byrdiesync says they cannot do it.Is there some way to do this?

I have made no changes to the PC or mail midway through the day it suddenly said input password, the password is correct, but I get incorrect password message. The password works using browser mode.

Some months ago I received an email, but the body of the email was a picture (jpg) from my computer. The sender definitely does not have the image. The content from the sender is missing, and my image is in the body of the email and as an attachment.

This has happened a handful of times over the past 6-9 months, with the same image showing up in emails from various unrelated senders.

I just received an email from my partner who sent me an email with a screenshot attached, but instead of receiving what he sent, I've got an email with my image that randomly shows up in my inbox.

A few days ago it happened, but when I restarted my computer, the unwanted image was no longer present, and the actual email content was visible.

Restarting my computer has not resolved this particular instance.

Does anyone know why Thunderbird is in love with this one image of mine and why it keeps showing up in my inbox in emails from other people?

I get this message when I try to send out emails:

Det gick inte att skicka meddelandet. Ett fel uppstod när e-post skulle skickas. Servern svarade: [M5] Your credentials have been compromised. Please change your password or contact support (2fe59c46-0669-11f1-a827-e90f2b8e16ca). Kontrollera att din e-postadress är korrekt i dina kontoinställningar och försök igen

I changed password, and it changed to this:

[R9] Your credentials have been compromised. Clean your devices from malware, change your password or contact support (4beaa535-066d-11f1-a6bf-f7376af24660).

Through my e-mail provide one.com, its working as usual. My other emails works on Thunderbird as well.

I still receive email to Thunderbird email.

Suppose I see 10 incoming emails on my server (core.com). In thunderbird, when I click to download them, I see a message saying something like "downlaoding 10 emails". After that only 2 or 3 of them have been downloaded, the rest deleted. Help! This started happening a couple of weeks ago. I have tried downloading and re-installing Thunderbird, to no avail. Should I change my account settings?

I am experiencing persistent issues configuring a custom-domain email account in Mozilla Thunderbird, while the same account works correctly in Outlook and in webmail.

Environment:

Email client: Mozilla Thunderbird (latest version)

OS: Windows

Mail hosting: Antagonist / DirectAdmin (shared hosting)

Domain: s23k.com

Email address: jean-paul.sablerolle@s23k.com

Incoming mail (POP):

Server: mail.s23k.com

Port: 995

Security: SSL/TLS

Authentication: normal password POP connection works without errors.

Outgoing mail (SMTP):

Server: mail.s23k.com

Ports tested: 465 (SSL/TLS), 587 (STARTTLS)

Thunderbird fails to send mail with the error:

“The requested domain name does not match the server’s certificate.”

Even after explicitly adding and permanently accepting the certificate exception, Thunderbird continues to reject the connection.

Important observations:

Webmail (Roundcube) can send mail successfully.

Microsoft Outlook can send mail successfully using the same SMTP server.

Thunderbird never completes SMTP authentication because the TLS handshake fails on hostname validation.

The certificate presented by the server appears to be issued for a different hostname than mail.s23k.com.

As a workaround, I am currently using an external SMTP server (KPN: smtp.kpnmail.nl), which works correctly in Thunderbird.

Question: Is Thunderbird intentionally stricter than Outlook regarding TLS hostname validation for SMTP, and is there any supported way to:

properly override this hostname mismatch for SMTP, or

diagnose whether this behavior is expected and unavoidable with misconfigured server certificates?

I would like to confirm whether this is expected Thunderbird behavior or if there is a configuration option I may have missed.

I am not trying to weaken security; I want to understand whether Thunderbird allows any safe override in this scenario or if the server configuration is fundamentally incompatible.