Thunderbird account settings

I have just acquired a replacement PC and installed Thunderbird, and (as happened on previous occasions) I am unable to send emails because the outgoing server settings t… (read more)

I have just acquired a replacement PC and installed Thunderbird, and (as happened on previous occasions) I am unable to send emails because the outgoing server settings that were automatically detected are incorrect, and even feeding in those I recorded on the last occasion does not work. I have had a long conversation with somebody at Plusnet Help Desk, who agrees that the outgoing server should be mail.care4free.net and the port number should be 25, and the connection type should be SSL. He also thought that on my "Account settings" screen there should be an option "Account actions" through which I may be able to solve the problem, but this is not there. I think that last time I had this problem, some genius on this forum managed to solve it, and hope that this will again be the case!

Asked by Ian Carmalt 4 days ago

Last reply by Ian Carmalt 1 day ago

Thunderbird Freezes

Thunderbird (current version) freezes each time an email is closed and when it does so, it freezes the entire computer. Computer: MacBook Pro 16"; Tahoe 26.2. The freeze … (read more)

Thunderbird (current version) freezes each time an email is closed and when it does so, it freezes the entire computer. Computer: MacBook Pro 16"; Tahoe 26.2. The freeze last for 2-5 seconds before it releases.

Asked by jrs10 1 day ago

lost deleted emails from thunderbird

lost emails from thunderbird working thunderbird this afternoon & it jus just wiped out all my emails every one it even deleted some local folders is there any way of… (read more)

lost emails from thunderbird working thunderbird this afternoon & it jus just wiped out all my emails every one it even deleted some local folders is there any way of recovering these emails thanks for any help

Asked by Des Allen 1 day ago

downloaded emails automatically deleted before reading them

Suppose I see 10 incoming emails on my server (core.com). In thunderbird, when I click to download them, I see a message saying something like "downlaoding 10 emails". … (read more)

Suppose I see 10 incoming emails on my server (core.com). In thunderbird, when I click to download them, I see a message saying something like "downlaoding 10 emails". After that only 2 or 3 of them have been downloaded, the rest deleted. Help! This started happening a couple of weeks ago. I have tried downloading and re-installing Thunderbird, to no avail. Should I change my account settings?

Asked by ellisboal 1 day ago

mail hameçonnage

Bonjour, Ma femme, victime d'un hameçonnage, a effacé le mail frauduleux que réclame l'assurance Allyatys. J'ai pu récupéré tous les mails effacés ( plus de 800) en em… (read more)

Bonjour, Ma femme, victime d'un hameçonnage, a effacé le mail frauduleux que réclame l'assurance Allyatys. J'ai pu récupéré tous les mails effacés ( plus de 800) en employant la méthode de X-Mozilla-Statuts: 0000. Mais bizarrement ce mail frauduleux manque à l'appel dans la période indiquée. Pouvez vous me dire qu'elles en seraient les raisons ? Par avance merci pour vos réponses. JL

Asked by lalue 1 day ago

Address Links

Updated Thunderbird and lost all my local folders and address lists. I imported CSV addresses to new version and can view them but when I go to use them in an email they… (read more)

Updated Thunderbird and lost all my local folders and address lists. I imported CSV addresses to new version and can view them but when I go to use them in an email they do not show up. How do I access them?

Asked by Vern McGaffic 1 day ago

Embedded images and photo attachments from Outlook 2016

Hi there, Just installed Thunderbird email. Before uninstalling Outlook 2016, I tried to forward some messages to Thunderbird, but Thunderbird will not show emabedded ima… (read more)

Hi there, Just installed Thunderbird email. Before uninstalling Outlook 2016, I tried to forward some messages to Thunderbird, but Thunderbird will not show emabedded images or attached photos, regardless of format (JPG, WEBP or PNG) Example: Instead of the image embedded in the email, I got this: g:20260201194950ee722ec300f042669bef9585ca10p0eu&R=1KSFSC960P76L&T=O&U=https %3A%2F%2Fimages-eu.ssl-images-amazon.com%2Fimages%2FG%2F01%2Fnav%2Ftransp.gi f&H=8QFJAA9HOQ1LXLAKNXLPWFHXGSSA&ref_=pe_109088481_1104238771_opens>

I have Original HTML in Thunderbird settings, not changed anything. How do I resolve this? I appreciate your help

Asked by zen53214 1 day ago

Incoming emails stoppped coming

I have Thunderbird with the same email box on my computer, laptop (both Windows 11) and mobile phone. Starting this morning, any new messages stopped coming to the laptop… (read more)

I have Thunderbird with the same email box on my computer, laptop (both Windows 11) and mobile phone. Starting this morning, any new messages stopped coming to the laptop and computer, only to my Android mobile phone. I have checked all the email settings but there is nothing wrong

www.mozilla.org uses an invalid security certificate

Hi, With new version 1.143 all accounts are gone, need to re-create my existing mails accoutns (outlook, yahoo, gmail) but all fail on error message "www.mozilla.org uses… (read more)

Hi, With new version 1.143 all accounts are gone, need to re-create my existing mails accoutns (outlook, yahoo, gmail) but all fail on error message "www.mozilla.org uses an invalid security certificate" How to resolve ? Grtz, Jane

Asked by talsbak 1 day ago

Spam folder

I have accidentally deleted my Spam Folder. How do I get it back? Thank you for any easy answers. My 82 yr old brain is not too computer literate.

Asked by Mim 1 day ago

How to remove or hide anchors in Thunderbird

Update: Apologies, seems it was my mistake. While setting up the signature in the first place I *did* pick up a named anchor from a template <a name="_MailAutoSig">… (read more)

Update: Apologies, seems it was my mistake. While setting up the signature in the first place I *did* pick up a named anchor from a template <a name="_MailAutoSig">. It was buried in the generated HTML, and I have now found and removed it. Problem, such as it was, now solved.

Is there any way either to remove the yellow anchor symbol which Thunderbird inserts in front of my signature, or to tell the client not to display the symbol? I didn't put one in the HTML signature that I use. There's no "remove named anchor" command. It isn't related to the double -- marker, which I've already removed using config. I have no use for anchors, which for me are simply a visual distraction.

Thunderbird is so good in many ways (calendar synch is great - one of my major bugbears with Outlook - also recipient privacy when sending out group invitations) and it can be quite frustrating in some others (e.g. unwanted features that I've had to dig around in config in order to turn off)

Thanks everyone :-)

Asked by tomd.234 2 days ago

Last reply by tomd.234 1 day ago

Checkbox for message selection

Hi there, Is there a way to get checkboxes to select messages or at least a plan to get it in a future release? I saw that there has been an add-on in the past, but not … (read more)

Hi there,

Is there a way to get checkboxes to select messages or at least a plan to get it in a future release? I saw that there has been an add-on in the past, but not maintained for some years and therefore not possible to use in newer versions. Yes, I know that you can select messages with ctrl and mouse click, but there are others in my family who are not familiar with it and reluctant to get used to it. (have used gmail for too long).

Greetings Grauer

Asked by fk123ab 2 days ago

Last reply by fk123ab 1 day ago

Two email addresses showing same data

I have two Yahoo email addresses 0 d6a.... and den2.... Both are set up in Thunderbird However, in Thunderbird, both addresses show the email/folder data associated wit… (read more)

I have two Yahoo email addresses 0 d6a.... and den2....

Both are set up in Thunderbird

However, in Thunderbird, both addresses show the email/folder data associated with the den2... address!

No emails for the d6a... address load to Thunderbird.

Separate data appears for each email address on the Yahoo web pages.

Asked by d6accE55 2 days ago

email

My old computer crashed and I have gotten a new computer. It's a Dell All-in-One. So anyway my question is how do I get my email to cross over to my new computer? Also we… (read more)

My old computer crashed and I have gotten a new computer. It's a Dell All-in-One. So anyway my question is how do I get my email to cross over to my new computer? Also we had LocalTel for a short time and my email and information went through them. My email address was Lorirn@ifiber.tv, they closed the ifiber.tv email system but was still managing it. So when my computer crashed somehow they knew about it and cancelled my email and closed everything. So now I can't get my emails that I had, which was a lot of them. Some were very important to me. I am in a very bad situation. I am hoping that you can help me somehow. I did try your transfer Thunderbird Profile Files and I don't think that I did that right. I have downloaded Thunderbird to my new computer. So I need lots of help from you if at all possible. I am hoping with fingers crossed. I have had to change my email to Lorirn5755@gmail.com, let me know if more info is needed.

Thanx in advance Lori Bolin

Asked by lorirn5755 3 days ago

Last reply by lorirn5755 2 days ago

I have a folder with subfolders in my Trash folder and I did not put it there

I have found a complete folder with subfolders in my Trash at last three or four times now, and I did not move it there. The folders are still in Local Folders but they … (read more)

I have found a complete folder with subfolders in my Trash at last three or four times now, and I did not move it there. The folders are still in Local Folders but they are empty and I have to move everything back. Why is this happening? Just in the last six months has this occurred.

Asked by Sunny Chandonais 2 days ago

Thunderbird 145 & 147 - frequent errors connecting to server "outlook..."

This just started 4 or 5 days ago ( 2026.1.23 ish). I did not update TB nor make any changes to the account in question (that I'm aware of). The errors show up every fe… (read more)

This just started 4 or 5 days ago ( 2026.1.23 ish). I did not update TB nor make any changes to the account in question (that I'm aware of). The errors show up every few minutes, with a 'beep' sound and notification pop-up showing up each time - is very annoying.

I was running v145 when it started. I saw there was an update to 147 and installed that; same issue. I restarted TB into Troubleshooting mode and am still getting the error.

This is running on MacOS 15.7.3. Hardware is MacMini (2024) with Apple M4 chip.

Generally I still seem able to received & send emails.

I opened Activity Manager and Error Console. Error console doesn't seem to have much (using 'Multiprocess', with Errors, Warnings, Logs, Debug enabled). Activity manager shows things such as:

<my account name>

   Connection to server outlook.office365.com was interrupted.    09:49
   Failed to connect to server outlook.office365.com.    09:52
   Authentication failure while connecting to server outlook.office365.com.    09:58
   Authentication failure while connecting to server outlook.office365.com.    10:03
   Connection to server outlook.office365.com was interrupted.    10:10
   Connection to server outlook.office365.com was interrupted.    10:14
   Connection to server outlook.office365.com was interrupted.    10:20

There was an error or log entry that I was able to find a few days ago that made me think it was Calendar related, but now I'm not finding that message.

Asked by Cronk 1 week ago

Last reply by Cronk 2 days ago

Quickbooks Point of Sale 18 Seeing Thunderbird

I used to have Windows 10 and was using Thunderbird with Quickbooks POS 18 and if I wanted to send an email in Quickbooks like a purchase order or receipt, it would open … (read more)

I used to have Windows 10 and was using Thunderbird with Quickbooks POS 18 and if I wanted to send an email in Quickbooks like a purchase order or receipt, it would open up a mailto window in Thunderbird with no issue. I've moved to a Windows 11 computer with the same profile running a 32bit version of Thunderbird, set as my Windows default mail client, even in the registry I've set it there but Quickbooks says I don't have a default email client setup. I've exhausted every search over the internet trying to fix it. Any ideas?

Asked by receiving1 2 days ago

Last reply by receiving1 2 days ago

write privileges - "The folder 'Trash on redacted@gmail.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again."

When I try and "Compact" my trash folder, I get the following error message: "The folder 'Trash on redacted@gmail.com' could not be compacted because writing to folder fa… (read more)

When I try and "Compact" my trash folder, I get the following error message: "The folder 'Trash on redacted@gmail.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again."

There is plenty of disk space, but there is no option for "write privileges". The trash folder has grown to 632 MgB even though I keep deleting old messages from the trash folder!

Asked by PaulL 2 months ago

Last reply by PaulL 2 days ago