Thunderbird 社群討論區

I have 10 email accounts I have to monitor. When I set up Thunderbird on Windows, I entered all the account info and the passwords. I checked the box 'use password manager'. This worked well for a few days. After several days, I started the app again and it asked for every password again. I entered all the passwords again. This happened several more times. I sought help for the bug, but found none. Someone suggested deleting password database files in the Thunderbird data folders. This did not help. Someone else suggested that CCleaner may be deleting password data files, so I added the entire Thunderbird data folder to the scanner exclusion list. Yes, this may be a security risk, but I need this app to work, as I have not found any other app that even begins to get the job done. Ready to start looking for another email app now, unless someone can fix this problem. It is not reasonable to expect me to lookup and restore 10 passwords every time I check my mail.

I bought a new pc with windows 11 and everything is fine except that I installed thunderbird via microsoft store and when I gave it my email address, I could see my emails but it hasn't created a profile. Therefore when a try to view the profile it says user.../appdata/roaming/thunderbird/profiles... doesn't exist. I am logged on as an administrator. Should I uninstall then install from the mozilla website directly?

Back when W110 went to w11 I got a new computer and was given great directions here to back up my TB profile by searching %appdata% and copy the thunderbird folder to external source. That file is 198 MB. I do this every month now ..It is my understanding it saves my profile and all emails including local ones. Now in Aug 2026 when i copy this file, I am getting an error a file is too long and have no choice but to skip that file..I will attach a pic of the error. Is this back up ok to use or is it corrupt because of the error?

I also found in TB help there is an export feature in TB to a zip file but that .zip is huge..I did one just in case. I think you just open TB>select hamburger menu three lines on top right>tools>export. I did that back up/export also today and that is a .zip file folder that is less properties like 175 MB.

So now which way is the correct way to keep a safe copy of my TB in case my computer crashes or i have to put on another pc?

After moving the data file to a new windows 11 machine, the Password Vault no longer remembers passwords. How do I fix? Online searches have told me to delete several files in the Profile folder. I have done this several times w/o success. What are my options other than to find another email client? Thanks, Hank

I don't know where to start. Ever since the update to version 154 I've been having one problem after another: switch from Comcast to Yahoo causes problems with THunderbird, slow indexing, arbitrary folders showing up in different email addresses (confuses my account with my wife's' some of that may be problems dealing with gmail issues), lost email folders after attempted repairs. Three months ago there were none of these problems. I have not yet tried switching back to the last updated version of 153, but 154 does seem to have many more problems. I've run troubleshooting.

I am not a computer expert and there is only so much time I can devote to this, but even computer repair services I've called are at a loss and very pessimistic about the ability to repair things. In all the years (over a decade) my wife and I have used Thunderbird, there have never been as many problems as have surfaced in the last two months. Maybe the best that can be done is to hope that updated versions will gradually fix these issues. I will say that my Macbook Air (M2 chip) has far more problems than my iMac (M1 chip). I have checked and rechecked all server settings (smtp and imap). Although more cumbersome, things perhaps work better if I just stick to webmail options.

Thunderbird functions normally (sends/receives), except after Windows 11 goes to sleep, I log back in without difficulty., but attempting to use Thunderbird to send email fails with the message

"Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp.mail.me.com failed. The server may be unavailable or is refusing SMTP connections. "

There's no prompt to re-enter the primary password, and the only way to restore normal Thunderbird operation is by rebooting WIN 11. Is this a known bug with a workaround? The failure occurs whether the outgoing server is smtp.mail.me.com (Apple), smtp.comcast.net, or smtp.gmail.com

With thunderbird this has just started.

I frequently send email that I have pasted part of an article from a news website. The pasted text is the standard black text. The bit pasted, when I look at my sent emails, has blue text.

All my comments on the bit pasted in my sent email are in the standard black text.

I want to copy my calendar from my Mac whrwe I use Week Calendar into Thunderbird Calendar, but I have not got it to work there. I read somewhere that Thunderbird art developing the calendar. Will it work now??

Mail.com (and all its vanity domains like usa.com, europe.com, myself.com, etc.) & many such domains no longer work in Thunderbird. They used to

I have had Thunderbird from the time I acquired my Mac computer. This week it started to do something new. After a restart I opened Thunderbird. A box came up that says across the top System Integration. The cursor balloons, and hasn't stopped for the time I powered the computer, as least fifteen minutes. You know how the program icons are in a dock across the bottom. With other browsers open, hitting the Thunderbird icon doesn't bring its window into the forefront. This needs either a reset, or possibly a backup first. Is there a quicker way to fix this? Thanks in advance. I am not using a VPN; but I also have Thunderbird on my Windows 11. You might have seen a more recent thread on that installation. I included a screenshot. It was easier here to do that than on the Windows 11. On the Mac, I just had to use Activity Monitor to close out of Thunderbird in order to get its version.

I updated to TB154 recently and find that connection to my Outlook calendar via Owl no longer works. In past updates I have been able to turn Owl off and then on again, sign in to Outlook and all is good. This time I was told that I had to unsubscribe from the calendar and then re-subscribe. Unfortunately, nothing that I am trying (sharing, publishing & etc.) is working. I remember that the properties window showed the calendar location as owl:// but everything that I have tried to add after this doesn't work either. Thanks for your assistance.

Добрый день.

При пересылке полученного письма с вложениями от абонента (у абонента почтовый клиент от компании 1С) вложения исчезают. Выяснили, что когда письмо отправляется из 1С "Content-Type: multipart/mixed" , Thunderbird не распознает данный параметр и поэтому удаляет вложения.

Подскажите, какие настройки сделать в почтовом клиенте, чтобы вложения не пропадали?

С уважением, Дмитрий

After your upgrade I was unable to send messages. The incoming I was able to fix but the outgoing I could not fix. I have included the email message sent to me and I have included a picture of the outgoing STMP,

I have a folder called "imap://[username]@imap.ionos.co.uk/Sent Items". Its name, however, as displayed is "Sent", and this cannot be changed anywhere (that I can see). This is tedious because I also have a folder called "imap://[username]@imap.ionos.co.uk/Sent" which is also displayed as "Sent". This latter one seems to be a system-generated folder. This has only been an issue in relatively recent releases, previously I have been able to see "Sent Items" and "Sent" in the folder lists.

Is this a known issue? Is there is a fix? It seems like there ought to be. All I want is for the same folder name to be displayed as in the string beginning "imap: ... "