Thunderbird: форум сообщества

I spent hours today with Rogers/Shaw support with nothing but a waste of my time. At the end they blame Tbird and were totally useless in helping. Thunderbird was fully working two days ago and I made no changes to anything. I am using the latest Tbird version. Today I uninstalled it and reinstalled with no change. I hate Rogers/Shaw but want to keep my email ID that I have used for many years.

I suspect this is password issue caused by Rogers but I can't identify it and as I said ROgers support was a waste of time. On the support chat the previous day they said they had a "back end" issue but now say that was fixed.

Hi there! I and my colleague encounter some bugs with Thunderbird and we would like to seek your advice in regards of the issue.

1. <user a@citizen-systems.com.hk> was supposed to get a cc copy of the email sent by <user b@citizen-systems.com.hk> at Mon, 12 Jan 2026 09:35:19 +0800 but it never reached. The receivers, namely <user c@systems.citizen.co.jp> and <user d@citizen-systems.com.hk>, however, were able to get the mail. <user d@citizen-systems.com.hk> and <user a@citizen-systems.com.hk> are working at the same office and under the same network. Network provider checked the protocol, router, traffic and firewall are working as normal.

2. <user e@citizen-systems.com.hk> found a number of emails that she kept at "Inbox" disappeared on 12 Jan 2026 morning +0800.

She is unable to find it anywhere at her whole mailbox but has to ask the senders to resend them to her.

It would be very much appreciated if you can check and advise how to prevent the issue from happening again.

(PII redacted by moderator)

Why did retrieving messages suddenly stop. It was working yesterday and I made no changes to anything. I can send successfully. I am using Shaw/Rogers Pop server.

Why does "test connection to server" fail?

Hi, The question is in the title. I have imported my Outlook data in this 32-bits version (updated to 140.7) . I would like to keep them in a 64-bits version (147). I didn't find the solution. Thank you for helping me. Michael.

Hello:

I use Thunderbird for work. I have several email accounts configured in it, including Gmail, my company's email, and Outlook. I recently added a new Outlook account, and I haven't been able to send a single message. The error I'm receiving is the one described in the title. It's worth noting that I have another Outlook account working perfectly. I've tried every solution I've found online, and none of them have worked, including enabling SMTP in the account settings, making sure OAUTH is enabled, using smtp.outlook.com or smtp.office365.com instead of smtp.mail.outlook.com, enabling two-factor authentication, changing my password multiple times, etc.

the Thunderbird inbox does not display received emails and does not display new emails.My web host provider,Hostgator, has all the old emails and is receiving new ones. so they are in their files. So the problem is with thunderbird. I have consulted your support and forums, tried troubleshoot mode... When I right-clicked on the input file and clicked on repair the display went blank and the emails vanished....also at midnight

on 1/16/26 I no longer receiving new emails.

your help will be appreciated

Lance

Hello, I have a problem with sending out emails. I can receive them but not send. when I set up an email and click on send, it does the spellcheck then attempts to send it, then a dialogue box comes up with: 'log into server smtp.iprimus.com.au with user name janas_3 failed'. It gives me the options of: Retry, Enter new password or cancel. I have tried using the existing password, and a new one and nothing works. I have contacted my Internet provider, who checked all the account settings, which were correct. Their advice was to contact Thunderbird for support, can you help me please?

I just installed Thunderbird on an up to date Windows 11 PC and unchecked the box Automatically mark messages as read, but it keeps marking all of my messages as read.

Help please!

A search showed that others have experienced this same error message, but as far as I can tell, they all were unable to access their email. These messages began appearing about a month ago. They pop up in Troubleshooting Mode. They did not in Windows Safe Mode. AVG and ZoneAlarm are not the culprits.

I've (finally!) managed to set up a new account on my new PC (having found the required password, a long string of letters - where did that come from? - I would certainly never have chosen that and I was never informed of it). I also successfully managed to transfer my Profile from the old PC to the new one (thanks to your helpful article. However, While I have thousands of 'sent' messages I only have a few in my inbox and sub-folders (i.e. today's). (I originally used the recommended server settings (?IMAP) I was offered but then changed to SMTP/POP which is what I always used before without problems.) So - I go to 'Import from a Thunderbird profile' and it shows me the Profile Name and Directory details, but then says 'Nothing can be imported from the selected source' - but doesn't tell me why not, nor what I should do about it! Given the Profile has transferred successfully, why can't it be accessed? Any ideas appreciated. Thanks, David Collins.

Thunderbird is reporting error "could not connect to server . . . the connection was refused." However, it seems that it reports this error only when there is no new incoming message. And it does not happen consistently.

Thunderbird is version 147.0. Operating system is the current version of Windows 11 on an HP desktop workstation, new 4 months ago.

I have 4 email accounts set up in Thunderbird. Server settings for the accounts are set to check for new messages at startup and at intervals of 5 to 10 minutes depending on the account and to automatically download new messages. I have confirmed the server settings for the accounts match the settings specified by the ISP. When there is a new message to be downloaded it seems that it does, in fact, connect automatically to the server and download when Thunderbird does its check for new messages at startup or specified intervals.

When I have open the Inbox for an account and click on the "Get Messages" icon or right-click on the account name and then click on "Get Messages" I usually promptly see at the bottom of the window the messages "Host contacted . . . sending login information . . . Checking inbox for new messages . . . there are no new messages to download." That is true even if I do that within seconds of receiving the "could not connect" error. But sometimes there is a delay of many seconds before the "host contacted . . ." message, and occasionally I never get that response to the click to get messages. When I click to "get messages" I never see the "could not connect" error even if the "host contacted" message does not appear.

I have set to show an alert and play a sound when new messages arrive. The same sound is played when the "could not connect to server . . ." error is displayed. The result is the sound may be played every 5-10 minutes. I can tell that this issue does not happen consistently because I might go for several hours, or even all day, without the sound and without the error message. The occurrence or absence of the error seems to be completely random and unrelated to what I may have open on the computer.

Since I do seem to be receiving messages without a delay in delivery this is perhaps no more than an annoyance, but I would prefer to avoid the annoyance. This is not happening on other computers here which are using Thunderbird.

We have Thunderbird installed on 2 computers and, for the last 3 days, we have been to receive, but not send email. We can log in to our email provider online and send from there with no problem, so it's strictly a Thunderbird issue. We use Graceba/WoW for our email/internet, windows firewall, PC Matic AntiVirus, Windows 11, and Thunderbird version 147.0 (this information is the same for both computers). When we try to send an email with Thunderbird, the following error message pops up: "Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp.graceba.net failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again." Our outgoing server settings are correct; nothing has changed and no updates have been done. Something happened over the course of a day 3 days ago (it was fine in the morning and not fine in the afternoon) that caused us to not be able to send email. Please help!

On my PC Thunderbirds sending/receiving mail says the mail server refused my connection. My laptop works fine. I have duplicated my laptops in/out specifications onto the PC but still nothing works. Spectrum says everything on their end is fine but can't vouch for roadrunner who is the rr in my mail address of ca.rr.com. All this started about 4 days ago. Any ideas on what to try next? Thanks.

Hello, My SMTP server uses Let's Encrypt certificate. The website with the same domain has no certificate. Thunderbird refuses to connect to my SMTP server. Test connection to the server (STARTTLS) in account settings sais "The secure connection to the server failed" (or similar. I see bg localization). Another server with Let's Encrypt certificate. Test pases. Clicking View certificate shows webserver cert (from DigiCert Inc).

I can't send emails! :)

Regards! Valentin

On January 1 my desktop version stopped downloading my GMAIL but my other non gmail are still downloading

I use Windows 10 and the version of Thunderbird is 147.0 64 bit

What can I do to fix this?