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I can no longer send messages through the email client on one of my accounts using Thunderbird, which no longer recognizes my internet service provider's password (but it does receive messages). Everything works fine with my other accounts.

Thank you for your help.

When Thunderbird automatically goes to my email server to check for mail. I got a message on the screen that says "cannot connect, invalid command" I contacted Tech Support at my email provider and insured that my incoming and outgoing server setting were correct, They were of course I have been using them for several years now and I did not recently change them. The tech said there was no problem on their end and that I should possibly contact thunderBkird tech support in case the App has been infected with a virus. Help!

All, recently set up email accounts and all was well. Used TB years ago & liked it for its ease. Now my signature is not working (set up with 'attach signature from a file instead' option FYI). Tried everything I can think of, disable add ons in troubleshoot mode etc. deleing & re-adding it. No new add ons have been added before this happened, they were added prior to setting up signature. And worked fine initially. Thoughts and please keep it simple for someone very old lol - pic attached for help perhaps?

TIA and appreciated

For 3 days, I haven't been able to access my GMX email account. It tells me every time "Login to the server imap.gmx.com with username '[edited from public] @gmx.com' failed. I hadn't changed anything beforehand and all the entered data is correct. My other accounts like gmail, yahoo, works just fine. Tried installing older versions and still no success. Outlook app works fine either. I'm pretty sure that GMX mail server made some changes that Thunderbird is missing. Please verify.

Best regards

Nilson Xavier

When I use Mail Merge to generate emails for many recipients, they are put in the "Outbox", but Thunderbird will only send 10 emails at a time. After 10 emails, I have to close the program and start it again to get the next 10 sent. So to send 100 emails, the program has to be closed and started 10 times!

Hello,

I've used Thunderbird for my e-mail for approximately 15 years, and now I can't currently send e-mail. I've gone through all the troubleshooting steps and also had Geek Squad attempt to fix it, but I'm still unable to send e-mail (I can receive them).

I've changed my password multiple times, reinstalled a fresh copy of Thunderbird on my Windows 11 laptop, restored the default settings for the outgoing server to align with what Verizon has specified, and nothing resolves the problem.

I keep getting the message: " Sending of the message failed. An error occurred while sending mail. The mail server responded: Email rejected. Please verify that your email address is correct in your account settings and try again."

Please let me know what the next step is so that I can use Thunderbird to send and receive my e-mails, like I have in the past.

After clicking on the message pop-up on the Thunderbird email client, the email appears blank,Open other windows to overwrite, then close other windows to resolve the issue. How can I view emails normally after clicking on the message pop-up

Have 2 email accounts that Thunderbird picks up: Outlook and GMail. Would like to push EVERYTHING downloaded to Outlook folders (from Outlook.live.com) to my GMail account folders. Seems like it should be easy, but I'm not having good success. Can anyone help or point me in the right direction?

I have been using Thunderbird as my mail service for many years, using it on the PC and my smartphone. Since several weeks ago, for an unknown reason, the "SENT" folder on the smartphone shows all the messages which were sent, but not with the correct name of the person/organization to who the email was sent. All my messages in the "SENT" folder are recorded as having been sent to "Lucie Payant" with a picture of her avatar, instead of showing the name of the real correspondent.

However, the "SENT" folder on my PC is fine and shows the correct correspondent to whom the email was sent to.

I verified all my settings, and, as far as I know, everything seems correct on my cell. This situation is very annoying and confusing.

Can you help me please. Raymond

Hello, I'm having a problem with emails on my computer and phone. Even though I have the "Don't delete messages from the server" setting, my messages aren't synchronized between my phone and computer. If a message is downloaded to my phone, it doesn't appear on my computer. What should I configure to prevent this from happening?

For the past 2 months I've been using this Thunderbird android app. I don't understand why I keep getting multiple mails being received in my inbox of gmail and Yahoo accounts.

I request you to kindly look into this matter.

Rest all good with the email client.

Dzień dobry, mam problem z wiadomościami przeniesionymi do folderu lokalnego umieszczonego na serwerze firmowym. W folderach widoczne są tylko tematy, natomiast po kliknięciu w wiadomość jej treść jest niewidoczna.

Wiadomość po przeniesieniu do głównego folderu odebrane jest ponownie widoczna.

Co może być przyczyną?