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I've been running Thunderbird for years on Gentoo which has version 115.10.1 as the most recent. I don't send much mail so I'm not exactly sure when this problem occurred, but I'm unable to authenticate with my SMTP server. I have not changed any configuration. Some weeks ago a changed my password on the server, but I made the appropriate changes to Thunderbird password manager. All settings, username and passwords are 100% correct as I copy pasted all of them. IMAP on the same server (uses same credentials) works.

I have tried deleting and re-adding my accounts which did not help. I have also tried deleting my profile folder. All other mail clients (e.g. claws-mail, kmail, mailspring) with the same SMTP server don't have any problems sending mail. This problem seems to only affect Thunderbird and Thunderbird forks such as Betterbird.

I have no firewall and am using SSL authentication with cleartext password on the SMTP server.

I get the following output to console on attempted sending of message:

console.error: (new Error("Server error 503 Service Unavailable", "resource://services-settings/Utils.sys.mjs", 390)) console.error: mailnews.smtp: "Command failed: 535 Incorrect authentication data; currentAction=_actionAUTHComplete" console.error: mailnews.smtp: "Authentication failed: Incorrect authentication data" console.error: mailnews.smtp: "Authentication failed: Incorrect authentication data" console.error: mailnews.send: "Sending failed; Unable to authenticate to Outgoing server (SMTP) mail.kapsi.fi. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'., exitCode=2153066805, originalMsgURI="

i did follow this guide https://www.strato.de/faq/mail/so-lauten-die-strato-e-mail-server/

im software developer so i know how to set up such stuff in thunderbird.

but i cant recieve, or sent mails.

please help

April 15, 2024 Thunderbird is Insecure There is missing functionality issues

1. How to Disable the "SHOW PASSWORD" Button in Security Settings 2. Either implement with a Password Password option, only to show the Passwords or 3. Allow the ability to Disable the Button

back in 1916-18 the ability to disable the "SHOW PASSWORD" Button worked with with a variation of the following at that time user_pref("pref.privacy.disable_button.view_passwords", true); I believe I created and used chrome.css or chrome.js

At some point this functionality ceased to work.

Now, I have scoured the Net to figure out a Solution simply setting the value to True, gets reset by Thunderbird, TB does not save it. it always reverts back to False and the button remains available and does not disable

I have tried everything, adding it in user.js, settings.js, userChrome.js I put it in every directory, nothing seems to work

Do I have to Lock it? - How? confusing and disappointing.

Please provide a simple step by step Solution to the problem

Thank you

dear fellow users of thunderbird, is anyone experiencing the same problem?

I can send mails using thunderbird but not receive them; For some it seems the other way round. and my ruminations as to possible root causes may be way off I have two external mail accounts, one is just forwarding to the next and that was the address the inbox of which I presumed was being collected by firefox

Without having done any active change: For some time TB seems to not have passed on mails from my alternative mail account. I cannot seem to find the previously functioning gmx account in my settings.

For two days now I do not receive any mails at all. Apparently I can send them, though.

I restarted the programme and tried in safe mode, to no avail.

I am a simple creature, please advise or enquire in a manner an exhausted non-tech person may be able to follow.

Hi I am having problems with Thunderbird, i’m not sure if it’s to do with a windows 11 update or something else. Thunderbird is not responding also at the start of the ‘not responding’ emails from one of my accounts disappeared and then gradually started to reappear but didn’t get up to date and now just not responding st all. I have tried various things to resolve this, uninstalling and reinstalling Thunderbird, doing this and opening my pc in safe mode, doing this and opening Thunderbird in safe mode. Deleting and reinstalling the latest windows 11 update, reinstalling the latest Thunderbird update. I don’t know what to try next? I read somewhere to delete your profile, after saving it, and getting a new profile but no idea how to do this. Any help appreciated.

Hello,

I have just imported my old email from Outlook to TB Local Folders. Everything works out except some of the email (not all) show a wrong date in the email list. The date show a future date like 2/7/2101, 6:28 AM. Please check the attached image. Any idea?

Hello and thank you for your help, I am trying to find my old Mozilla Thunderbird, e-mail account my older computer does not work, anymore, I have not used my Thunderbird, e-mail account in over five years, because I am on a newer computer. And could not access my information on the older computer that does not work. I could really use all my information and EMAIL account for Thunderbird, because I have many years of information on all those emails, I can’t find my password, 0r email address for Thunderbird emails, because I have not used my Thunderbird account in over 5 years. My old computer does not work and Thunderbird Email is a great program. How could I get my old emails back? And working. If you could please give me more or less a time, and date, to wait for your response, so I can wait for someone to help me, and not lose that opportunity. It would be much appreciated, so I don’t miss contact with someone that can help me with this matter. I am in the East coast. And thank you for any concern in this matter please help.

Bonjour Madame/Monsieur. Depuis 2 jours voici le message qui s'affiche à toutes mes tentatives de connexion à ma boite mail :

Échec de la connexion depuis le serveur imap.orange.fr avec le nom d’utilisateur robert.verger0524@orange.fr.

Que dois-je faire ? Cordialement. Dr. Robert Verger.

I want to customize shortcuts in Thunderbird using tbkeys but I can't find the right command name.

In the description is written: "Most command names can be found in the main command set file of the Thunderbird source code."

But where I can found all/ more/ other command names?

In my case I want to change:

• "Move to previous UI element" (default: Shift + Tab)
• "Move to next main UI area" (default: F6)

listed in this overview

I wrote an email without putting in anyone for the 'TO:' or 'CC:' fields. The BCC: field only had my own email address in it.

I accidentally sent this email before I had sorted out the TO: and CC: fields properly.

In my sent email and it had 'undisclosed-recipients' in the To: field.

I found this disconcerting, since I wasn't SURE if I hadn't put anything in the CC: or TO: fields. I worried I may have sent a rough, poorly worded email to someone and that could backfilre.

Am I right that whenever 'undisclosed-recipients' is shown in the To: field and I sent the email, I can check in that sent email who was in the BCC: field and that should re-assure me who had actually recieved a copy of that email.

Clarity in this area would be VERY helpful.

Regards

   Mark

I have a Gmail account and Talktalk account, both on TB, and sometimes as a reminder to myself I send an email from Talktalk to Gmail. However these emails do not appear in my Gmail inbox but instead go to All Mail, Important and Unwanted folders. How do I stop this.

Today, most of messages have suddenly disappeared from my TB inbox, leaving only the most recent 105 out of approx. 18,000. I have not performed any operations (compacting, archiving...) that could have caused this.

I immediately invoked the 'Repair Folder' command, which did not resolve the problem. Further investigation revealed that the 'Inbox' file ('Profiles' folder) actually contains only 105 messages - seems like the 'Repair Folder' truncated the file!

Fortunately, all the messages are still on the server. My question: Is there a method to 'force' reloading of the missing messages?

Thanks, Ray

My email is on a gmail server. I've been using POP for a long time. My inbox in gmail has 160,000 emails. They go back to 2005. In Thunderbird I have moved emails from inbox to to various local folders. Right now I only have from 1/1/2022 forward in the Thunderbird inbox.

Let me know of any way of migrating to IMAP

Thanks in advance to any replies

There is no option for message headers under View. How can I see email message headers in Thunderbird?

I Googled how to do this but they all say there is an option in the main menu under View. Maybe at some point there was, but not now. So how can I see the email headers?

I have an issue with using newgroups via NNTP server in Thunderbird. News only load during startup of the program. Whenever the option Get Messages is chosen later, or when it is automatically run by the program, the process seems to get stuck in a loading state. In this state neither can new messages be read (the headers seem to be there and are shown, but the body of the message isn't), nor can new messages be sent (message sending gets stuck in status "Assembling Message")

This has been the case for a few releases already, and is currently present on 115.10.0 (64bit)

I have not had access to my email since the April 18 Thunderbird update, receiving this error message: "After changing password on an IMAP account, the account could become locked due to too many failed login attempts" How do I fix it? Please email me at jjhpor@gmail.com because my primary email, using Thunderbird, does not work (See above) Thank you Jim Housman

Hello,

i'm currently trying to set the font 'Aptos' in thunderbird 115.9.0 to the default font for writing e-mails.

I do know that there is an option to configure this under 'settings -> writing -> html-options -> font' but when i try to change this i seem unable to find the font Aptos in this list. I do however have other programs installed on my computer, that already use this font. How can i get and set this specific font in thunderbird?

Kind regards RedPanda