Thunderbird Community Forum

Does anyone no why I would keep getting these types of messages. Also the only glitch I've experienced is occasionally in writing an email it fails to save to draft. Thanks.

I have been using Thunderbird for many many years. I am 70+ and the number and kind of hoops I have to jump through just to keep getting my email are getting beyond me. I recently moved my business hosting, and somehow a change was made in my original email code on Thunderbird so I was not able to do anything with it. I want it on Thunderbird BUT I live in a small rural town and can't find anyone who has been able to help me. The other email systems require a code sent to a cell phone, and although I have a simple emergency phone I do not have a smart phone so I can not receive the code. The other email systems I've tried require an email code be sent to a smart phone almost every day, and although we tried to do this with my daughter's smart phone she is frustrated with me because she has to come over and help me so often. Also, I have so-o-o-o many emails in my original account and I don't want to lose them. Can anyone help??? Does anyone there at Thunderbird work on anything like this? Is there a way to reach Thunderbird directly???

After returning from a 6 day vacation, my wife attempted to download email from her Yahoo email account. There are nearly 200 messages that have piled up but they aren't moving. I've uninstalled and re-installed TB. I've uninstalled and reinstalled the app password in Yahoo. There is no problem with accessing the email via any web browser. I spent 49 minutes on a tech support call with Yahoo and they have said the problem is with TB because they repeated the same steps I have. I checked firewall settings and the only antivirus program on the computer is Malware Bytes and it's not running in the background. The version of TB is the most recent as of yesterday. I don't see any sketchy looking emails in the web version of Yahoo Mail when it's opened. It's set up as a POP3 account and has been since Cox Internet gave their email over to Yahoo. I'd appreciate any assistance in resolving this because it's currently above my pay grade and tech support at Yahoo.

Goedendag, Ben zelf nieuw in Thunderbird. Ik heb diverse mailaccounts en ik zie een Verzamelmap staan met daarin ondermeer de Concepten en Verzonden mails. Deze zie ik liever per account weergegeven worden, kan dat?

Ik gebruik IMAP op al mijn accounts, na het instellen zie ik per account wel al mijn ontvangen mails staan, maar niet de verzonden mails? Ik denk dat dit inherent is aan mijn vraag, maar hoe kan ik dat dus oplossen?

Tot slot zie ik Mail-conversaties staan van berichten en hun antwoorden, maar dat wil ik helemaal niet. Ik wil gewoon alle berichten op datum & tijd gesorteerd zien staan. Hoe krijg ik er die conversaties uit?

Dank voor alle hulp alvast!

Groet, Pico

I have four AOL-based eMail accounts I follow on TB; let's call them A, B, C and D. The folder contents on A & C are correct. However, for some odd reason, TB is placing the contents of A's eMail folders in B and in D! I have deleted the accounts twice, closed TB, re-started, and re-added B and D accounts, but the contents still are of A's eMails?!? Please help!

Thunderbird has stopped receiving or sending email. I just tried to send a message and received the following error message: "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.gmail.com timed out. Try again." This has been a problem for several days. Potentially since the last update. Please help. Thank you.

I am trying to add a posteo email account to my thunderbird app on my phone and on my laptop. Each time when I get to inputting my user name and password I get an authentication error.

I'm moving from one PC (Windows 10) to another (Windows 11) and copied the Thunderbird folder over to the new PC yesterday. All seemed to be working fine on the new PC.

However, I've noticed that new emails sent to my gmail account FROM a gmail address are not being downloaded (I can see them in Gmail on the web). Emails sent from other addresses are downloading fine.

I have checked on the 'old' PC (which has identical configuration and is running the same version of Thunderbird) and they ARE downloading.

They aren't in the SPAM folder, I use POP3 and both PCs are configured to leave emails on the server, to it isn't that they are being deleted after downloading onto the old PC.

It's maddening, as about half my emails aren't available in Thunderbird, which makes it useless and I HATE native Gmail!

Thanks for any help anyone can provide

Hi, We have suddenly stopped receiving emails from our booking provider, 'Inn Style' since the 13th August. All other emails appear to be being received. I have contacted our booking provider and it shows at their end that they are being delivered to us so have suggested it is a problem from the email provider. It is a big problem for us not receiving emails from our booking provider. Thank you for your help, Lucy

Hello. I have been unable to send email from one of several POP accounts on Thunderbird (v 115.18.0). I believe this occurred after Network Solutions changed the SMTP server for that email account. I am able to send email from my Gmail IMAP account setup on the same Thunderbird program on my PC. I have tried all the port and authentication settings for SLS/TLS and STARTTLS, changed/updated passwords, etc. I do not get any error messages, just never receive the test email I send to my other accounts. I updated the SMTP server on my iPhone mail app to the new NetSol SMTP and it works on that platform. I just cannot get it to work on Thunderbird on my PC. NetSol support said to delete account and start over which is not possible as it is my business email account. Also, the inbox is too large to back-up to an external drive. Any suggestions? Thanks in advance. John

My recollection is that prior to a recent automatic update to Thunderbird 140.12.1esr (64-bit) when I had a message composition window open, there were "SEND" button and possibly a "SEND LATER" button (to the left of the addressee and cc addresses in addition to the keyboard shortcuts (CTRL ENTER and CTRL SHIFT ENTER).

Following the update, there is no longer anything to the left of the addressee information. I have checked the toolbar menus, and there do not appear to be any button options. I can still send messages, but the lack of the buttons is a hindrance.

After updating to 153.0.1esr(aarch64). the SEND button has disappeared. There's no way to send an email. (I can receive emails.) I am a Mac mini M2 Pro. OS 26.4.1

I cannot find a link to download a previous release of Thuderbird, which was working fine until this update.

Since about November 2025, all the mails I try to sent to @sfr.fr addresses (different recipients) fail and I get the following message: Sending of the message failed. An error occurred while sending mail. The mail server responded: <xxx.xxxx@sfr.fr> recipient domain rejected (blacklisted by local policy).

Please check the message recipient "xxx.xxxx@sfr.fr" and try again

I did not have this problem before. If I use Greenby's web mail (My email provider ), the messages are sent without any problem. I would very much appreciate some help to solve this problem! P.Y: pemy@pemyoung.plus.com

How do I fix this Sending of message failed. An error occurred while sending mail. Th mail server responded Policy -MFRM53 Relay Denied-unauthoruzed. Please verify that your email address is correct in your account settings and try again What should I do