Thunderbird Community Forum

Thunderbird demands my password for outgoing SMT server when I go to send an email but when I enter it, system won't accept it even though it is the correct password. I have had this problem for some time and it comes and goes. Sometimes I have ebeen able to send without a problem, then it comes back I had a helpful reply from this forum (can't find who posted it - Mick?) tellling me to go into the error console (Ctrl + Shift + J) and delete eveything in that. I tried that. It worked at first, but now when I do it, it has no effect. And the problem now appears to have become permanent, although occasionally after I have been working for some hours, then suddenly I can send without any problem. Problem hasn't budged though for a couple of days now. This is a mysterious and erratic gremlin, which now seems to have taken root. Any suggestions please? Carol

I have created folders that I want specific emails to be put in when they arrive. But I don't know where to create these rules. Creating the folders is easy but how do I create a rule that tells Thunderbird which folder to put emails from specific people/businesses etc

It's been almost a week now, and my 2 Microsoft email accounts will not connect to Thunderbird anymore. All was fine for years, but something changed that I can't figure out!?! I have gone to my Microsoft email server and checked that my passwords still work. I even updated one and it works on Microsoft server but not Thunderbird's!?!? I even deleted one email account from Thunder bird to re-install it, but when I tried a fresh re-install Thunderbird still won't connect to Microsoft server??? I'm at my wits end, and may abandon Thunderbird completely if someone there doesn't help me connect!!!

I have installed Mozilla ThunderBird Previously on many machines. Am Familiar with Incoming Email Servers and OutGoing Email Servers ... Also special ports ... POP ... and .... SMTP ... IMAP ... ETC ... GBGB On this Machine ... Dell Latitude ... 128 GB SSD ... 8GB RAM I have Mozilla ThunderBird Installed for as Single Email Account ... OverstreetENGR@Juno.com

When I REPLY to Emails , THIS IS the error message that I get : Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.juno.com timed out. Try again.

Hello,

Everything working just fine last night. Wake up and Thunderbird will not retrieve emails.

Remembered this old message I got so I went through and deleted my second email address, didn't help.

https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo

Checked all settings compared to Yahoo, still won't download messages. I can even send a message with my current settings no problem, and it does login, just won't retrieve emails. Gives me a connection timeout.

Anyone have any ideas?

will not download -- "Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox"

Hello,

I am trying to copy all messages from Yahoo email to Thunderbird and after I sync or Get Messages in Thunderbird and then delete an email in Yahoo email, the email will also be deleted in Thunderbird.

Could you show me how where Thunderbird will not delete messages after I have already synced or Get Messages in Thunderbird?

Thank you, David

Neither my wife nor I can access email on our respective PCs. This has been the case for four weeks. We can access email by our Android phones, but we really want to use our PCs. I've tried to resolve the problem and failed. Previous to this failure, I had an account with BT but this was transferred to EE. When I attempt to log in to my mail account, I receive the message "Could not connect ... :the connection was refused". I can also add is that in my Account settings, Outgoing Mail server I see a message "Connection to server mail.btinternet.com:465 failed."

When email downloads from my internet server to thunderbird how do I indicate that the message is to be deleted from the server. ie I dont want the message to be in two places . At the moment after reading the email and saving it to a folder I have to log into my internet provider and delete the email.

I am totally frustrated with Thunderbird. All I want to do is send and receive email, but I always run into problems. This time I cannot send or receive emails because the password is incorrect. I changed my password BECAUSE IT IS GOING TO EXPIRE IN 5 DAYS AND I TRIED TO LOGIN AND SEND EMAILS BUT IT IS NOT HAPPENING IT IS SHOWING THAT INCORRECT PASSWORD so why is this happening? I removed all OLD passwords FROM PASSWORD MANAGER to my email and Thunderbird still SHOWING INCORRECT PASSWORD AND I M NOT ABLE TO RECEIVE THE EMAILS SINCE 10 DAYS. . Please advise.

Hi,

I would have posted this on this previous question by the same name https://support.mozilla.org/bm/questions/1266115 However it has been closed from further discussion despite being the top search google link for "thunderbird filter contains wildcard"

And what I wanted to say is that

This should long have been core functionality It is not even apparent when you make the filters, that wildcards (*) don't work So you make a ton of filters and they're silently broken !!!

I find the general filter creation process very cumbersome, almost almost every setting has to be changed every time, the main window, locks so you can't copy-paste from it mid-filter-creation and many many other quirks that make each filter creation an annoying 20 steps process, core among which, is the inability to create a destination folder on the fly while creating the filter !

But yeah, no wildcard support is kind of crazy

for example I want to put all emails from pizzahut in a folder

But they randomly change their From URL to @a.pizzahut.ca @b.pizzahut.ca @c.pizzahut.ca @d.pizzahut.ca @e.pizzahut.ca @f.pizzahut.ca

It's like they know the filters can't wildcard ! they is super annoying !!

New to Thunderbird.

I have added a Gmail account to Thunderbird. I select a message in Inbox, right click > Move To > Local Folder

It seems to work. It creates a copy in Local Folder.

However, a few seconds later, the message reappears in the Inbox. The message in Local Folder is still there, confirming that copy is made successfully.

Also, the message is still in Gmail account when viewed from Google's Gmail. It's clearly working like Copy rather than Move.

This is frustrating. Is it a bug?

The last new email I've received on Thunderbird for one of my accounts was on 5/13/2026 at 12:02 p.m. Every time I open thunderbird it tries to re-download the entire yahoomail account and times out. I have deleted all emails from the yahoo mail box from 5/13 and backwards. All spam emails have been deleted and the trash can has been emptied. Per online instructions I have also deleted the popstate.dat file, tried to repair the inbox file by right clicking on it, going to properties and clicking repair folder. I also tried to compact the folders, and have turned off my virus protection and nothing seems to be working. I also tried a new app generated password from yahoo. Current setup is pop.mail.yahoo.com port 995 SSL/TLS, authentication method = normal password. Any help would be greatly appreciated. Thank you!

With previous computer (Winidows 11) I've been able to send an email from WITHIN Word, but now I get error message "Word couldn't send mail because of MAPI failure." Any idea how I can fix this? Regards, David, running TBird version 151.0.1 (64-bit)

Using Thunderbird with Spectrum email (an old roadrunner address). Changed the outgoing server to the following: Server Name: mobile.charter.net Port: 587 Username: Reefside@cfl.rr.com Authentication: Normal Password Connection Security: SSL/TLS Testing connection fails. I have tried different combinations and once in a while I get that the connection is successful, but email sending hangs and never completes.

Sending of the message failed. An error occurred while sending mail. The mail server responded: Mailbox full. Visit https://aka.ms/mailboxfull for more information.; STOREDRV.Submission.Exception:QuotaExceededException; Failed to process message due to a permanent exception with message [BeginDiagnosticData]Microsoft Unified Storage is full. QuotaExceededException: Microsoft Unified Storage is full.[EndDiagnosticData] [Hostname=GVXP250MB1449.EURP250.PROD.OUTLOOK.COM]. Please check the message and try again.

I get this message everytime I try and send emails

I can't get email. When I try a window comes up saying sign in and when I click on it the next window says error 400 and that's it. I can't get my email! Please help!

It's been several days and no email!!