Thunderbird Community Forum

I am still running Windows 10, but as of yesterday every time I open Thunderbird it resets my settings and spends hours re-downloading every email that I have. It constantly tells me that the connection to the server has failed and that all my passwords are wrong. Nothing is wrong with the server and none of my passwords are incorrect. After about 2 hrs, it completely re-downloads every email (I have multiple accounts) and I can continue to work like nothing was ever wrong in the first place. However, if I close out the program, it starts all over again. It randomly picks an email account and requires that I start from scratch and reset them up. Other times they are there like nothing happened. I have restarted my computer multiple times, it continues to do this.

I'm not sure at which point this behaviour started, it was either after thunderbird suggested that I compacted my folders or perhaps after the update to the latest Thunderbird version. Sometimes when I start Thunderbird I only get the inbox (which is empty) . Sometimes I get nothing then the inbox gets downloaded from my IMAP account. Sometimes I see all my folders for a few tenths of a second and I see message on the bottom border (where it normally talks of connection to the mail server) but these messages talk of deleting all my folders one by one. On one occasion all my folders were laboriously downloaded one by one (as reported on the bottom line.) Often shutting down Thunderbird and opening again results in all the folders being instantly available (so they must have been there all the time). It sometimes takes a number of shutdown/restart cycles to get the email folders back. Any ideas what is going on and how I can stop it happening? Thank you for getting this far.

Storage always full with only 100 or so e mails in my in box No junk or spam or anything else No one else in the company has this problem but me and my storage is getting smaller and smaller . I do more e mails then anyone but am always full with less than 200 e mails

Thunderbird will display older email, but will not retrieve new email. It puts up a message "downloading message 1 of 140". That second number continues to grow. It was 76, then 138, now 140. I cannot retrieve new email. That email address is [redacted] @att.net.

I suggest you reply to me at [redacted] @gmail.com.

Fred Bohle

In einem meiner Postfächer sind alle Unterordner verschwunden unter TB. Auf dem Handy kann ich alles sehen, in anderen Postfächern auf dem PC stimmt alles.

Ich habe alle verfügbaren Tips probiert seit ca. 4h.

Im Verzeichnis von heute scheinen alle Daten vorhanden zu sein, siehe Bild. Die Dateien und Ordner von gestern sind aber grösser, siehe 2. Bild. Im Postfach auf TB sind sie aber gar nicht zu sehen.

Was tun?

Gruss, Dirk

I've tried the recommended solution for this problem--changing the "security.tls.version,min" from 3 to 1 without luck.

I don't have a problem with Apple Mail on my iPhone.

When I try to access the web version from my Windows machine using Firefox I receive a message "serious security issue with webmail.dca.net. When I try it from a MAC, using Firefox I am able to access mail.

Thanks for any insight you can provide

I've been using Thunderbird for my POP3 accounts on Windows 10 for years. I'm now trying to install Thunderbird on a new Mac Mini (M6) running MacOS 27. In the Thunderbird setup, I go straight to Manual Configuration and select POP3. This takes me to a screen that allows me to configure one POP3 account plus an SMTP server. I enter the exact same configuration info that I use for one of my accounts on the Windows machine. Interestingly there is no box on the form for an account password. When I hit the "Connect" button, Thunderbird post a message saying "Mozilla Thunderbird failed to find the settings for your email account." When I select "Show more" it says "Can't find a server".

My Mac machine has its firewall turned off completely ("Inactive") and I have no problems with other apps accessing the Internet. There is no way to explicitly list Thunderbird as a firewall exception because the firewall is off. Further, I opened a command window and pinged both my POP3 and SMTP servers (using the same names as I supplied in my Thunderbird configuration) and they ping just fine; i.e. "ping" has no problem reaching them. I'm at my wits' end.

Spam folder says there are 5 messages. When I open it by Spam up on the right it says 7 messages but in the body it says no message found. Are there messages somewhere and how do I access because they aren't showing.

When the programme loads the incoming emails are not visible and I can't see the inbox title. I keep pressing the small cloud for incoming messages and eventually the the incoming emails show and I can see the inbox sign.

I empty the Spam folder regularly. However, usually shortly after, everything I deleted is back in the Spam folder again, along with any new spam emails. I have to go through all of them again each time to be sure there is no legitimate email in there as well. Why do the spam emails come back into the spam folder after emptying the spam folder?

I am working with thunderbird on two locations and have problems moving contents between address books and entering new contacts into address books.

On location A I have created a mailing list X under my personal address book. I could fill it by copy/paste address and name from mails received. Then I created a cardav address book Y and somehow (ctrl + left mouse?) succeeded to drag and drop the entries from X to Y and synchronized it with a nextcloud cardav file.

Now I went to location B, created a cardav address book with the same credentials as on location A and got the Y addresses synchronized.

So far, so good.

Then I tried to enter new addresses in location B into this Y online address book. Problem - I could not find a way to add new contacts into a line with copy/paste like into the X mailing list in location A. New contacts could only be added via the "New Contact" form, no copy/paste.

Then I created a mailing list in my personal address book with the same name X. I could not find a way to copy the content of the online address book Y into this list (on location B). When I tried with ctrl-left button drag and drop, the target mailing list X was forbidden. Only copying to my personal address book would be possible. But at least this mailing list X offered again the copy and paste possibility in one line, but unfortunately the list was empty.

Then I tried it with export/import. I exported Y from the online book to a vcf file on my computer, then tried to import the file to my mailing list X, but I could not find a way to import the file to the mailing list X.

I can create a new address book and move the contents of the cardav book to it. But adding new contacts is possible only via the "New Contact" form where I cannot just copy/past addresses from emails.

Any suggestion how I can work with my mailing list contacts on both locations and easily enter new contacts with copy/paste from mails without having to use the form?

I am trying to get my Address Book(s) off an old PC that barely has any resolution. I cannot locate any MAB files, only SQLITE files (abook, etc.). What is the file that the address book is found in?

I am trying to migrate from Microsoft Outlook 2021 to Mozilla Thunderbird. I have successfully imported the email from a number of different email accounts. I would now like to import the archived emails held in a number of PST files. The import tool would seem to be what is required, but it does not seem to allow me to select the PST files that I wish to import. I am concerned that it will try to import all email messages from my Outlook 2021. Is there a way of restricting it to just individual PST files?