Thunderbird Support Forum

Recently I've had problems with the SMTP server refusing to send my e-mails, I am still being able to recieve them however. When choosing to enter a new window the window where you should put your passwords appear and dissapear at the same time. I've never experienced this kind of problems before. I even removed the account and the smtp account and re-added them back again to see if it would help but to no avail.

I am following the article from Mozilla called Microsoft OAuth Authentication and Thunderbird in 2024. But still it won't work.

Some of my emails are hidden in threads from previous conversations and not showing up as the last email received. If I am not expecting an email then I may never see it unless I happen to open up a previous that could be weeks earlier. I hate this and cannot conduct business when I can't see emails coming in . If someone is replying to a previous email , I may never see a new conversation. Only if someone sends an email that is not a reply am I guaranteed to see it. How do I fix this

Without notice, Thunderbird today required me to sign-in to my Google account and then produced a window in which it said it wanted to access to my mail, contacts and calendar; in order to compose, send, share, delete permanently, among actions on my personal content. I tried to "Deny" (see below) but the window just returned and returned and could not be deleted. (see "Uploaded images", below for the content of this window).

Is this a scam? Or the result of a hacker?

Suddenly I cannot send emails. I can receive emails. I have checked my account settings and they are correct as follows: Charter Communications mail.twc.com port 587 Starttls normal password ggordets@san.rr.com. I contacted Spectrum and we proved that the problem is not them by initiating an outgoing email to myself using webmail. I even tried uninstalling and re-installing Thunderbird. As indicated above my email is ggordets@san.rr.com

Thank you. P.S. My operating system is Windows 10.

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.

Our small business has a handful of Zoho email addresses that we use via Thunderbird on MacOS computers in our office. The computer I am using only has some of the email addresses listed in Thunderbird, and I am trying to add the rest.

Once all requested data is entered in the "Set Up Your Existing Mail Address" screen, we receive the error message: "Unable to log in at server. Probably wrong configuration, user name, or password." All of the data is correct, and I have tried this process different weeks to see if the issue will clear on its own, but no. I've attached a screenshot of the error message.

I have tried this with several pre-existing email addresses and it's giving me the same message, although it did allow me to add one address recently. That newly added, previously existing address is now somewhat accessible via Thunderbird, but every time we open Thunderbird it says "Login to server imap.zoho.com with username shipping@jadeandpearl.com failed." I can access the inbox and other folders of this account in the Thunderbird desktop app, but it is not currently showing new email.

Thunderbird version: 115.12.1 (64bit) MacOS: Sonoma 14.5

I back up my TB profile every few months. I just went thru the Cox-Yahoo email conversion and I am getting emails. When I did my back up, I noticed in the properties it had one more folder and the files went from 1311 to 2585 files. Is something wrong? Do I need to compare and research what is causing this or just move on!

Hello! We are a real dues-paying member, having made a number of donations over the years. We have been having trouble with emails received from Microsoft-based systems, with the HTML formatting of messages getting lost and the attachment of a winmail.dat file, which we can't open. We tried to use your Lookout add-on, but with all of the permissions that must be given in order to use that add-on, it will not pass our IT security folks. Is there any chance you will be able to improve Thunderbird to read those messages without having to use the add-on? We really hate Microsoft, and would prefer to stay on your team, but we will not be able to unless a solution can be found.

Thanks! Mark

Despite literally hours of frustrating -- now infuriating -- effort, my inbox won't show "from," which was removed by the most recent update. Is this problem fixable? If so, how? (If not, I'm damn well going to dump Thunderbird.)

In the past, I could click on an email address and drag it into a new subfolder I'd made (let's say for emails to a group about baking). Easy as pie!

Sorry for the bad pun.

Now, when I try to click and drag, it will NOT go into that subfolder. I looked in Help and there were answers about csv files, about a horizontal or vertical view, etc. None of that made sense to me.

So I'm wondering if it's still somehow an easy thing to do, to duplicate someone's email in one or more other folders. It seems like it should be! Thanks, Su

At our clinic when we cannot answer client calls it goes to voicemail. The voicemail the should be sent to our email and transcribed, however it hasn’t been. It leaves us with the only option to play voicemails aloud while clients are going in and out of the lobby, which we find unprofessional. Please help us fix this!

I just noticed (after 7 yrs) I have Thunderbird(beta) 32 bit on my laptop windows 10 (64 bit machine) and Thunderbird 64 bit on my desk top Windows 10 (64 bit machine). How do I get the 64 bit Thunderbird on the laptop without loosing all my settings to login to my 4 email accounts?

In my inbox I see a couple of emails that (once opened, or even seeing preview) are not associated correctly to the original email sent or received. It's quite odd as it happened only a couple of times, but even after updating, rebooting and moving these messages, they are still showing the wrong addressee and content.

In the attached screenshot you can see the example. Looking forward to receiving your help. Best regards, Nuno

Greetings, recently our pc was attacked ,malware. A new windows program was installed. This resulted in some apps being deleted. One of which was the Firefox email. Inspite of many attempts to reinstate it I have had no success. There is great difficulty in finding what to do to reinstall. There are assumptions that I have particular information. Other than our 3 email addresses we do have any code numbers or passwords, as these to were also lost. As it has been several days since the "repair" the inability to access Firefox with historic emails is now creating a number of serious issues. I need urgent help in reinstalling our Firefox email. My inability to find that one person who I know can help is out there. The FAQ were of no help. The request how to reinstall Firefox does not appear to be a FAQ. Ross.

After some intermittent problems, hopefully solved, I am now left with one main problem. When I send an email to agmail eddress it fails, saying something about SPF having a hard fail and no DDKM, whatever that means. If I send emails from webmail ro my iPad they get through. Can this be solved, please?

I've been trying to get Thunderbird (102.6.0) to filter messages based on message body contents that contain specific URLs (such as "https://docsend.com"), but it's not working. I even tried setting emails to be viewed in plain text (as opposed to HTML), but that also didn't work.

How can I achieve this?

Hi, I love this email app. but now I starting to get this msg. What I need to do NOT to have this msg every time that I open the app. = Dear users, ThunderHTMLedit will no longer be hosted at addons.thunderbird.net. Please head to www.betterbird.eu/addons/ to install the new version. The extension “ThunderHTMLedit” is requesting to be uninstalled. What would you like to do? Thank you very much Pini

Hi, my Thunderbird has brought down 279 emails from Gmail. I opened Gmail and found the emails properly in the Trash folder. So it appears that Thunderbird is bringing down all folders??? I've been a user for years and never notice downloads from spam or trash before. New change to Tbird? Is there some way to exclude spam and trash folders from download? My version is 115.11.1 (64-bit) TYIA Richard

I'm trying to change my signature on an account I've had for sometime. It lets me make the changes I want and when I try sending a message it works fine. However when I close Thunderbird down and re open it, the signature has reverted to the previous version. I can't see any option to save the changes to the account settings so they'll still be there next time.

I've tried it 2 ways - firstly editing the HTML signature text, and secondly attaching instead a signature file. In both cases it works fine until I close and re-open.