Thunderbird Community Forum

Thunderbird did an automatic update late today and since then have been unable to send emails. Incoming emails appear to be working.

I am using a Gmail IMAP account

The error message is - " Login to server smtp.gmail.com with username stevematulick@gmail.com failed. "

When I then select cancel then get a further Error message -

"Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) smtp.gmail.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'. "

I quit all and shut down my computer on 30 July 2024. On returning, ( 9 August 2024) and re-opening everything, I cannot get any emails newer than when I shutdown the system. Am I doing something wrong?

    -  Matt

Dear MZLA,

I donated to MZLA, looking forward to an "improved" Thunderbird. I am very frustrated by the result.

Downloaded and started new Thunderbird, and I have several questions:

This is a serious inquiry; I am desperate for information & help.

1. What happened to my address book? How can I get it back? A hundred or more addresses just disappeared.

2. What happened to all of my saved messages? How can I get them back? I used to have a neatly organized file of saved messages. If I was still using Tbird for my business, I would be looking for a lawyer. As it is, I am simply looking for something as useful as the old Tbird.

3. How can I save a message to a specific category or off line file? I used to have several hundred categorized files in my data base for saved messages.

4. Why does my effort to use a help request not respond to my mouse clicks? It seems to always want more donations.

5. Can I go back to the old version? It was easier to use and more straightforward.

6. What am I missing in this "new and improved" version? Is there another email application that would give me the nice features of the old Thunderbird?

7. Can I revert back to the old Tbird and recover the extensive lost addresses and saved messages?

8. If I decide the "new and improved" Tbird will not provide the features the old one did, how can I get a refund of my contribution?

Your early response will be appreciated.

Jon Wilson,

How do I delete multiple emails? I keep getting emails that say that I am at 95%. The only way I have figured out how to delete emails is one at a time! That will take a long time. I have tried clicking and selecting and that is not working! HELP!

Why does TB 115.14.0.. 32bit on Win7 occasionally not download an email that I can see and read when using the web site email program? (Currently.com AT&T on Yahoo)

I have been using Thunderbird for 10+ years and it's the best mail program hands down. However...

Before this last update everything ran just as advertised, then after this latest (128.1.0esr (64-bit)) it rund so slow, snails pace slow. It's not just the download and loading, it's also when it sorts messages it has taken up to a full minute to move an email (no image) from the Inbox to another folder. I have changed nothing, I went through and delted a bunch of messages and it's still so slow.

Windows 10 Pro - Version 10.0.19045 Build 19045

Any assistance would be greatly appreciated.

HELP??!?

Thanks!

To try and rectify thunderbird not sending email to my outlook.com I have deleted the acount in thunderbird twice and reset it up each time. The problem is the IMPAP e-mail download works fine but sending e-mail either stays stuck on sending, times out or I get not authenticated on SMTP server. My send set up is :- Port 587 Server name: smtp.office365.com Connection Security: STARTTLS Authentication Method: OAuth2 User name: This is my outlook e-mail address ie name@outook.com I confirmed the message originating from Outlook asking to confirm access by Thunderbird. My Thunderbird is up to date with latest version. Any Ideas? Thanks! By the way, Thunderbird works fine with my GMail account for both IMAP and Sending mail - I deleted my gmail account in Thunderbird and re-istalled it - all reinstalled work fine but not so with sending e-mails to my outlook account.

Thanks Much.

I use Thunderbird 128.1 with NVDA in Windows 11, and find it annoying having to press Shift+F6 to focus the folder list, and then F6 to go to the message list. Please fix this in a future update so keyboard focus is automatically placed on the message list when the program opens. I've disabled all the extra preview screens and other things that come up when launching Thunderbird, and I'd like to quickly begin navigating messages without the unnecessary keystrokes.

Program works fine except it takes over a minute to download email. I think this started a week or so ago after a momentary power outage crashed my computer.

My version says its up to date 32 bit and I'm on the esr update channel.

I deleted a large quantity of expendable emails thinking maybe I needed more space, but that had no effect.

When I start in safe mode (Windows 7) I am able to open Thunderbird. But when I tried to get my mail I get message: "pop.verizon.net connection was refused"

Any suggestions would be greatly appreciated. (I'm not very savvy about these things)

Hello, I have two Hotmail accounts on Thunderbird, one @hotmail.com and one @hotmail.es (if that makes any difference). Both working fine since switching from Windows to Linux a week ago. As of this morning, the hotmail.com address can't send emails (it can receive them no problem). The hotmail.es email can send and receive no problem, although it has the same settings.

When I try to send an email I get the error: "login to server smtp-mail.outlook.com with username ...,@hotmail.com failed. " If I click on 'enter new password', it just tries to send the email again without asking for a password, although I don't think that's the issue because I can login via the outlook.com website using that same password.

When I click cancel, I get the error: "Sending of the message failed. Unable to authenticate to outgoing server (SMTP). Please check the password and verify the authentication method in account settings/outgoing server/(SMTP)".

I've checked both POP settings and outgoing server settings and they are the same for both accounts, apart from the email address obviously (pic below). I got these settings from the Microsoft page: https://support.microsoft.com/en-us/office/pop-imap-and-smtp-settings-for-outlook-com-d088b986-291d-42b8-9564-9c414e2aa040

Microsoft support said it's a Thunderbird problem. I've tried disabling my firewall and VPN. Would appreciate any other ideas (in absolute beginner terms if possible). Many thanks for reading.

Thunderbird 128.0.1esr (64-bit), Linux Mint 22 Cinnamon 64-bit, Gufw Firewall 24.04.0, VPN Surfshark 3.0.3, Hotmail.com, ISP = Three 5G

I suppose the best place to start is when/where I think this problem started. Approx three to four weeks ago my thunderbird program stopped downloading emails from my server (Spectrum/RR). I say Approx because the problem sort of sneaked up on me without me realizing it was there.

I was using W7 and my hard drive was pretty much full and I was constantly getting messages that my email could not be downloaded due to lack of space. I started deleting stored emails and emptying the trash, which sort of kept me up and running for the past couple weeks. All this time my Gmail account continued to work as it should, downloading every email that was sent to me, but the Spectrum/RR account was spotty at best.

So today I fired up a new W11 computer for the first time. One of the first programs I installed was Thunderbird. When I attempted to set up an account using Spectrum/RR the process failed. I typed in all of the correct information, Name, Email, and Password but the account will not finalize. Instead, I continue to get the same message that the Configuration, Username or Password is incorrect.

I have since successfully logged into my Spectrum/RR web mail, so I know the username and password I am using is correct. I have also talked with Spectrum Technical support, and they have verified that what I am using to log in is correct.

I hope I didn't ramble on to much and someone can help me !

This is kind of a long story, I will keep it as short as I can without compromising details. All of the suggestions on the support page have not helped in any resolution. So, yes, I have been reading it for days now.

Originally I was getting the error message "The certificate for mail.*.com is not valid for that server. Someone could be trying to impersonate the server and you should not..." I tried to make everything right on the settings for both smpt and the imap server settings. Nothing fixed it. Eventually I elected to uninstall TB and rename the folder under users/user/appdata/roaming/...etc. Basically start fresh. This is my boss's TB and he has had all sorts of issues since switching from POP3 to imap. It was working fine for a few days, then he got that original message about the possible impersonating server. Anyways, so I started fresh and got it all re-setup and it was working again. Inbound came in and sent went out no problem. Then TB updated to the more recent version 128 and then a new error occurred. First, " Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. You can retry or save the message locally to Local Folders/Sent." So I chose not to save because it was just a test email. Then I doubled checked everything (nothing looked wrong) and I tried a new test email immediately after and another new error came up. "Sending of the message failed. Unable to communicate securely with peer: requested domain name does not match the server's certificate. The configuration related to must be corrected." I have tried getting and exception but it says that I don't need one. The certificate seems fine, though I only know enough about the certificates to be dangerous.

One more problem is I cannot get all of the old local folders onto TB as they were before. I know where the file is, however, TB will not import it, nor can I just move the folder into the mail/local folders folder in the profile. I was hoping that would fix it, but it indeed did not. This problem I know is unrelated to the connection issues, but it is an issue needing resolved that I have not found a solution for on the TB help site yet.

Thank you in advance to whomever can help in these matters. B

When I open any email in my inbox, other than those I am receiving today, there is no content. The email "opens" but there is no content. Only a blank page is displayed. This is a problem only with the inbox. All my previous "sent" messages are intact.

Sometimes my Thunderbird Inbox (or some other folder) is empty, and it's Properties Location is empty. I've found nothing to fix that except to close Thunderbird and reopen it; sometimes needing to wait a few or several minutes before reopening it. That's always (finally) worked, but I guess I'm concerned that one time it won't work. What could be causing that?