Thunderbird Support Forum

We don't know our password. We are not receiving emails. We have searched our password and it has confirmed it as the same we have written down. However, this does not work. Where do we go from here?

why is there no back button on thunderbird? I clicked on a message (have to click twice on it now in the lousy upgrade I was forced to use), and now I can't go back to the inbox. What's up????

Thunderbird is blocking some outgoing mail. If I start with a file, right click, send to mail recipient; the message is blocked as spam with this diagnostic: Sending of the message failed. An error occurred while sending mail. The mail server responded: Spam detected by content scanner. Message rejected (ID 6661B68A00783926). Please check the message and try again.

But, if I start with Thunderbird Write and attach the same file, there are no problems and the message is sent.

Like all of us, I get bombarded with spam emails. So I set up filters to separate the "definitely spam" from "possibly spam". I've been doing this for many years now. But recently, maybe for the past few months, I'm finding that these blacklist filters aren't working anymore. The filtering failure seems to be getting worse as time goes on. And, yes, I do a match on "any", but that still doesn't work. As I said above, my filtering rules used to work just fine, but possibly a new Thunderbird update several months ago broke filtering?

Also, is there a way for filtering on the message content URL? I find that sometimes that's the only way to distinguish spam.

To the Mozilla Community:

I have a Posteo account and set it up successfully in Thunderbird. Emails and Calendar are both working without any issues.

However, Posteo contacts are not syncing. I used the TbSync / Provider for CalDAV and CardDAV without success. And using the Add CardDAV Address Book in Thunderbird is not working either.

Posteo Support confirmed my settings are correct. (Enter https://posteo.de:8843/addressbooks/johnexample/default in the URL field and replace johnexample with the local part of your email address. )

Any assistance that can be provided to troubleshoot and resolve this issue is appreciated.

Thank you.

--Shaun

I used the same password I have been using for a long time with my Verizon account and now I get this message: Sending of password for user k.machv@verizon.net did not succeed. Mail server pop.verizon.net responded: [SYS/TEMP] Server error - Please try again later. I can open and download my email messages via AOL but it will not recognize my password to allow me to download my messages to Thunderbird.

Hi, first I've been using Thunderbird for decades and couldn't do without it -- keep up the good work! I have a keyboard shortcut bug and an icon action bug to report, as well as a text formatting suggestion. As background, I'm running TBird 115.12.1 (64-bit) on Windows 10 and have three different IMAP email accounts and a collection of local message folders that I access.

• Keyboard Shortcut Bug: I use the the filter box activated by <Ctl+Shft+K>. Everything works fine when I freshly launch TBird, but after some variable length of time after switching between various apps and activities, when I return to TBird I find that <Ctl+Shft+K> does not switch focus to the filter box. In this state, typing a search string gets lost. I can manually select the filter box and enter a search string, but the keyboard accelerator is not functional. It does not repair itself until I relaunch TBird. I have tried unsuccessfully to isolate events outside of TBird that bring this on.

• Icon Action Bug: I also use the inbox selector icon and a similar problem happens after extended external session activities, but not necessarily coincident with the filter box problem. The inbox selector icon stops functioning to display the new input mailbox folder being selected -- it keeps the previously selected folder in the mailbox window. To switch to another folder, I have to manually open the folder sidebar menu and select the folder I want to display. Again, I have not been able to pin down what causes this to happen. It resets to normal function when I reload TBird.

• Text Formatting: Before the upgrade to SuperNova, when composing/editing a message, I could select disjoint strings (using <ctl>select) and have text formatting options (like text style) apply to each of the selected substrings in parallel. Now with SuperNova, when I select disjoint strings, the text formatting option applies only to the first selected substring. This makes complex text formatting very tedious because I have to sequentially select the substrings and apply the formatting commands. Please restore the previous ability of reformat multiple selected disjoint strings.

Thanks again for your outstanding work on improving TBird!

Regards, Tom Rindfleisch <tcr@stanford.edu>

When I migrated Thunderbird from a Windows environment to my new Apple Mac it did not migrate my local folders. Can someone explain the process?

I have the mozmsgs and sbd folders on my new Mac and have manually put them in the "local folders" directory but they are not recognised.

Regards Joe

Hi This morning when I tried to send an email I got a message there was no disk space & so couldn't save copy to sent (I have 848 GB free on HD)

I tried to copy some old sent emails to a folder I've used in the past (old sent) & TB crashed. When I restarted it, many of my subfolders were missing. They are all still showing in Local folders in profile. I deleted all msf files & restarted TB. Nothing.

How can I restore these folders? Hopefully that's possible! Thanks

Please advise what settings will work with Thunderbird for all NETWORK SOLUTIONS imap and POP accounts Also please advise the proper settings for all AOL accounts IMAP and POP

I would like to know what the options below, contained in the settings editor, are for and how I can adjust them so that every message sent is configured to require confirmation of receipt by default:

mail.identity.default.request_receipt_header_type mail.identity.default.request_return_receipt_on mail.incorporate.return_receipt mail.receipt.request_header_type mail.receipt.request_return_receipt_on mail.request.return_receipt mail.server.default.incorporate_return_receipt

Lately I have been getting a lot of spam and have identified all coming into my inbox as spam. Now many are automatically moved to junk mail box and that is a good thing. Unfortunately it also seems to be slowing Thunderbird down. I am afraid that many of the "Filters" generated may be duplicated. Is it possible to see them and maybe edit them to reduce the impact on my system?

Hi: I recently set up a new computer. I copied over all the important files I could find before a full hard-drive erase of my old computer. I reloaded Mozilla Thunderbird linked to my Earthlink account. However, upon opening Thunderbird, I discovered that my address book and all saved emails in Thunderbird were lost, and I didn't save them in the Earthlink account itself other than the address book. I do daily backups with Carbonite. Is there a file or files I can look for in my Carbonite backup files that would contain the saved emails? If so, what are their names?

Hopefully this will reach Thunderbird support though I know Mozilla no longer supports this but the Thunderbird team does.

I would like to install Thunderbird on a MacBook Pro 2024 which I assume is running Os 14.5. It is not clear to me what version, if any, can be installed. I have used Thunderbird on Windows for many years but now wish to install it on this Mac.

Thanks,

 John

Just got home from vacation and it looks like I left my computer running for a week. Looking for an email and noticed that many, many emails from my saved subfolders are missing. Does Thunderbird automatically archive or something? I have never archived purposely. I need to know whether to use my backup program to try to retrieve these missing emails or to get them from my profile. Instructions in very easy explanation, please. I've tried to search this on the internet, etc. and I'm just lost and panicking. How can I tell if they were archived or not? I've found my "profile" but I can't tell what, if anything, to do from here.

I've used Thunderbird for years using a POP setting; Network Solutions would prefer that I use IMAP. I don't know the difference, but they must and prefer that it be IMAP (netsol-imap-oxcs.hostingplatform.com) (PORT: 993. When bringing up the settings in my mail account, it doesn't allow anyone to change that field. What can I do? I want to use Thunderbird; because of this particular setting I haven't been able to, and must instead log on to Network Solutions and go through their email interface. Thank you.

I was stupid and loaded down what I thought was an updated version, 115, of Thunderbird. Many of the folders with saved emails has dissapered. How can I get them back? Why is the number of saved emails shown on some of the folders. How to make the shown number to dissapear? How can I take away old emails in the infolder. In the previus version was that possible. I had to make all accounts once again. Shall it be that in an update? How can I get back the previous versin? I am not pleased with this new 115-version.

Regards Thomas