Thunderbird Community Forum

All of the sudden today I can't send email from Thunderbird. Incoming email fine. However whenever I try to send I get a server timeout error. This has been working fine for years up until today. This is the message; Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtphm.sympatico.ca timed out. Try again.

Somehow, I now have a duplicate email account. Changes to either one are reflected in the other account. So if I delete one, the other one will be duplicated. Also recently, each received email is duplicated.

I can live with each duplicated email but would like to get rid of the duplicated account.

Thanks, Sue

Suddenly, bizarrely, some of my sub folders have disappeared. They are not "greyed out". They have totally disappeared. I now missing important content, that I need. I have been unable to find a solution by browsing on this forum. Can anyone help? And if they are gone for good, can anyone suggest how I can prevent this from happening again?

My version of Thunderbird is 128.5.0esr (32-bit).

I use Yahoo Mail. Yahoo prompted me last week to change my Yahoo password. After doing this I noticed I could not longer receive or send emails in Thunderbird. When I try to send a message in Thunderbird I get the following message: Login to server pop.att.yahoo.com with username spdailey@sbcglobal.net failed. I've tried going to Settings/Passwords/Saved Passwords and removing all Logins re-booting and entering my new password (the one I used with Yahoo Mail) without any luck.

Can you please help me get this corrected. Thanks much!!

Hi I started my Thunderbird on my laptop today 2024-11-26. However, last emails are from 2024-11-19, i.e 7 days ago.

I don't see what's wrong. No filters, strange sorting or similar are applied. When I login to same mailadress via webmail instead, everything works. There I have many mails between 19th Nov until today 26th Nov.

Any ideas what can be wrong? /Best Regards Joakim

Good day! Could you help me please. There is a trouble with delivering e-mails to our clients, they do not receive our letters because the system returns them back. We cannot understand the reasons. The thing is that it does not happen with each letter. It works in a spontaneous way, some letter can be sent without any problem, another one will be returned.

That is what we get from the system:

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

 sergeevvrob@mail.ru
   host mxs.mail.ru [217.69.139.150]
   SMTP error from remote mail server after end of data:
   550 Message was not accepted -- invalid mailbox.  Local mailbox sergeevvrob@mail.ru is unavailable:
   user not found

Reporting-MTA: dns; cpanel9.c.fozzy.com

Action: failed Final-Recipient: rfc822;sergeevvrob@mail.ru Status: 5.0.0 Remote-MTA: dns; mxs.mail.ru Diagnostic-Code: smtp; 550 Message was not accepted -- invalid mailbox. Local mailbox sergeevvrob@mail.ru is unavailable: user not found

I'm on tb 128 and use roadrunner. I see my emails on spectrum server but can't download them? I was using pop, they said imap is needed.

   Username: Your full Spectrum email address

   Password: Your Spectrum email password

   SSL: On

   Protocol: IMAP

   Incoming Server Port: 993

   Outgoing Server Port: 587

   Requires Authentication: Yes, or checked

Thunderbird for Mac won't allow me to set up Gmail. I'm using the latest version (128.4.3esr) of Thunderbird on Mac OS Sonoma 14.6.1.

It gets stuck on "Checking Password"

I've gone through all the standard checks - The password is correct, IMAP Access in verified in Gmail, Accept Cookies is on in Thunderbird settings, incoming and outgoing server details are correct. Firewall and anti-virus are off etc.

I really want to stop using MS Outlook for Mac, but need a reliable Email client. Am hoping this is Thunderbird....

Anyone know a fix for this? Thanks

Hallo, Nach einem Viren Alarm gestern habe ich leider durch die G-Data Software den Virus komplett löschen lassen, danach waren meine Mails nur noch als Betreffzeile zu sehen, und der Inhalt und die Anhänge sind verschwunden. Ich hoffe, es gibt eine Möglichkeit die Inhalte und Anhänge wiederherzustellen. Leider sind es POP- Konen,

Dies betrifft 2 Konten alle anderen Mail-Adressen haben kein Problem.

Dieses Konto k.aschke@aschke-dental.de ist betroffen, sowie rechnungen@aschke-dental.de ist betroffen.

Ich hoffe sehr, es gibt eine Möglichkeit, alles wieder herzustustellen. Ich habe eine Datensicherung vom 24.10. die benutzt werden könnte.

Katrin Aschke Aschke Dental GmbH & Co. KG

I can not send a message because the "send" button stays grayed out. I down loaded Thunderbird today and set it as the default Email app. None of the online help suggestions worked. Where can I look for the cause? Windows 11

Occasionally some of my contacts said they were not receiving my emails. Therefore I sent an email to myself and it did not arrive. When I checked my sent box my email was there but the sent address consisted of the first part of my own address, followed by a completely different address, which I traced to a Spanish email provider: @d4.com.mx

It looks like my sent emails are sometimes being re-directed to someone else's address. How can this happen and more important how can it be stopped?