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Reguarly with some month between I can´t send email. After many days, which is impossible to use, it is ok without doing anything.

Haven´t manage to send in many days and now it is huge problem.

When I click on send buttom on the email come text about the fail which is 100% wrong.

It say: An error occurred while sending mail. The mail server responded: (then come my email adress): Sender adress rejected: not owned by (the part of my adress in front of @) Please check the message recipient (my email adress) and try again.

This text is 100% wrong because all things is as always! Never changed it. And seeing it in setting it like it should be!

I am almost given up, this come always with months between and that is hopeless.

Please help!

Hello. I have some questions. I want to delete the image, but I don't know how. How can I do this? I've looked into it, but I couldn't find a solution, so I came to ask for advice.

I don't like to use the address bar to type searches. I like using the SEARCH BOX in Firefox's New Tab instead. But, with each update, I once again have to try to figure out how to set Firefox searches to be typed in the search box. Is there any way to set this so it doesn't get changed with every update?

I read online that Firefox is planning on implementing AI features. Given the track record of AI in other browsers leaking private information, bogging down connectivity, and generally being a nuisance towards users, I was wondering if there will be opt out features in future updates? Or know of forum threads that will update with tutorials on how to turn off AI features?

If not, does anyone on this forum have recommendations for no-ai browsers?

I had two Thunderbird apps on my computer. When I realized that one of them was for organizations, which I don't belong to, I deleted it. But both of the apps were deleted. I then reinstalled Thunderbird, but when I went to send an email, my entire address book was blank. How do I retrieve it and reinstall it ? Thank you.

Please Please Please advise how to modify settings to stop copying emails to "All Mail" folder. There are nearly 14K emails in that folder, and it's killing my capacity, I'm getting warnings, etc. Yes, I'm using Gmail.

Yes, I have unsubcribed from it, starting from my account name → Subscribe → unchecked [Gmail] All Mail. To no avail...

Of course, I do not want to delete mails I have saved in my hundreds of other folders. My mail goes back 25+ years, and I want to keep those archives.

Thank you Thank you Thank you!

I use both Gmail and Thunderbird. I can see both in Thunderbird on my PC. I would like to sync my TB address book with Google contacts. I searched a good while on-line and find information about adding a CardDAV Address book. However the instructions mention steps that simply are not available on Thunderbird on my PC. I have the latest version of TB (140.7.1esr (64-bit)). The first step says to "open the Address book, select File>New> CardDAV address book". That is not a choice. Anything in Mozilla support is several years old.

So is this possible or not?

I am running Thunderbird 147.0.1 (64-bit) on Windows 11 Pro 25H2. I have Thunderbird set up with two email accounts -- gmail and outlook.com (an old msn.com address). Approximately every 10-14 days the msn.com account encounters an error with the message "Command Error 12." When this happens, Thunderbird immediately drops all the local email folders for the msn.com account, and attempts to redownload all email and folders associated with the account. The msn.com account in question is configured for IMAP:

server name: outlook.office365.com Port:993 Connection Security: SSL/TLS Authentication Method: OAuth2

The expected behavior here would be for Thunderbird to display a connectivity error message but retain all local email on my laptop. However, this specific connectivity issue is dropping all locally stored email. I also noticed that the mail columns get reset to default. It appears this issue is causing Thunderbird to delete not just the email but some of the account configs as well.

At present, I do not have a screenshot showing the command error 12 message. I will try to take a screenshot the next time the issue occurs. What is not clear is whether this is an account setup issue or a bug in Thunderbird. Any advice would be appreciated. Thanks.

I recently got a new laptop with Windows 11 Pro. I installed Firefox from the Mozilla site. When I click to open Firefox, it takes a long time - 41 seconds to be exact. I uninstalled, reinstalled and restarted my computer. I cleared the cache. I tried to run as administrator. Not sure what else to try. As I wait for it to open, it reads "not responding" in the search bar area. Any ideas?

some items are large, some items are TINY. I have tried resetting my display setting scale, but the url bar, the menu where are my open tabs, the bookmarks toolbar, and some other things re TINY.

Folder name: BOGUS AI PRAISE-MKTING-BOOK CLUB BULLSHIT I had been adding emailed marketing messages that I knew were fake into this folder for about two weeks. This morning, after a Windows 11 Update, when I tried to add another such message to that folder, the entire file folder was missing. I tried everything I could think of, including looking for help online, to no avail. This folder contained around 500 emails, over 200 of which I hadn't even opened.

Hi, When I click on a link in ANY email, it says " Hmm. We’re having trouble finding that site. We can’t connect to the server at omxj86ebb.cc.rs6.net. If you entered the right address, you can:

   Try again later
   Check your network connection
   Check that Firefox has permission to access the web (you might be connected but behind a firewall)

I know I did something to make my computer more secure, but don't remember. Please help! THANK YOU!

I downloaded Thunderbird and added my email account. The email account I configured in Thunderbird is set to be permanently deleted. All information in the email account will be deleted. My question is whether I can use Thunderbird as an email archive? I think I copied all of the emails in the account into Thunderbird. When my email account is deleted will the copied emails in Thunderbird still be there or will they disappear as well?

Guten Tag, ich instaliere schon auf 2 PC mit Wondows 11 Ihre Email Programme Thunderbird und ich habe an statt ein Papierkorb eine Mape Zeichen. wenn ich lösche Email, dann die verschwieden und die kann mann nicht wieder finden. Es wir bei Instalation automatisch Einstellungen von Programm ubergenommen. Ich bitte um Ihre Hilfe, was mache ich falsch. Vielen Dank im vorraus. Michael