Thunderbird Community Forum

Hello, Bonjour, Since few time when i want to send an Email it is impossible and that i get with any Email address everytime the following message !!!

L’envoi du message a échoué. Une erreur est survenue lors de l’envoi de l’e-mail. Le serveur de courrier a répondu : Client host rejected by spamhaus for spamming issues; please refer to Listed by XBL, see https://check.spamhaus.org/query/ip/37.65.161.172 for further information. Veuillez vérifier l’adresse du destinataire et essayer à nouveau.

Would you telle me what i can do ? Thank you so much. Merci beaucoup Regards. Alain

I have recently not been able to send outgoing email through thunderbird. I can send and receive and send on my regular email service but not through thunderbird. I can receive but not send on thunderbird

Hello. When handling a large volume of emails, some sent messages are not saved in the Sent folder. As a result, they are only saved on the 3rd or 4th attempt, and the recipient receives 3-4 copies of the same email. What could be causing this issue and how can it be resolved? We reinstalled the client and configured it to save sent emails to a different folder, but all without success.

I haven't used Thunderbird on an office computer in several months. When I opened it, the most recent emails were from October of last year. Nothing seems to be updating or refreshing. How can I reactivate the account?

No matter what I try, reinstalling thunderbird, enabling IMAP and cookies, ensuring server settings are correct - oauth2 etc, using Mozilla Firefox AI help for most of one day until all avenues were exhausted, a Microsoft support worker taking over my computer and reinstalling Thunderbird then saying the fault lies with thunderbird..... I cannot connect to the Microsoft smtp server. message says connection failed and on retry or new password options message says check outgoing sever settings and authentication

I'm using Thunderbird 152.0a1 (2026-04-22) on Windows 10 64 bit. When I click the "Get Messages" button or File > Get New Messages for > [my e-mail account] nothing happens. The only way I've found to check for messages manually is by closing and re-opening the program.

When I send photos from my phone to my imac inbox, same email address, or when a third party sends me a verification code, "get messages" is very slow showing results. Sometimes minutes, so I have to go through several verification attempts. The primary email account is gmail. My ISP is comcast.net. I don't know if this matters, because slow Get Messages is recent. It used to work very well

When clicking the "cloud icon" ("get all new messages") I would expect it to check all accounts. But it only check the account that is currently displayed (not the others). Is this a known bug? Is there a setting for this?

this is the error message I get:

Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: p-impout008.msg.pkvw.co.charter.net cmsmtp 37.19.200.148 is listed on Cloudmark CSI-Global. Please visit csi.cloudmark.com/en/reset?ip=37.19.200.148 AUP#Out-1200.

This doesn't happen all the time, but quite often. I have rebooted, tried closing and re-opening T-bird, I don't know what to try next

Hello

i am struggling with TB as it always uses the default email of a server account.

Instead, i would like to use different accounts based on the recipients

I could not find an extension with this behavior.

For example, I would like all email exchanged (sent & received) to a domain ( @thatcompany.com ) to use a given account alias (myalias.email@proton.me)

Thanks for all assistance

I have 13 email accounts in Thunderbird. Most of the emails work flawlessly. However, in some accounts , before I read them, the original emails are "automatically" duplicated in other folders (for instance, "important", and or "save" folders). After reading the emails in my inbox, I have to open each folder where the duplicates are and wait for the emails to disappear "automatically". It's a pain b/c the folders are hi-lighted and therefore I can't tell if I received a new email in my inbox or is it an old one I just forgot to delete in another folder. How can I stop this from happening?

Steps:

1. Email received in inbox; inbox high-lighted in blue 2. Open inbox in order to see emails, some folders (on the right-hand side) are also high-lighted in blue. The contain duplicates of emails in the inbox. 3. Deal with emails in inbox (open, read, keep, file, delete) 4. Some folders are still high-lighted in blue ( for instance, in uploaded image "all mail" and important") 5. Open high-lighted folders which deletes folders that were deleted in the inbox or if not deleted in the inbox, emails remain in the folder but the boldness turns off and the folder is no longer highlighted in blue. How do I stop the original emails from duplicating to other folders?

I get the messgae 'Unable to write email to the mailbox...make sure the file system allows you write priviledges and you have enough disk space.' When I looked at the errors Thunderbird recorded I found thei:

pop3.server1.2: Incorporate write FAILED! Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIPop3Sink.incorporateWrite] NS_ERROR_OUT_OF_MEMORY: Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIPop3Sink.incorporateWrite]

   _actionRetrResponse resource:///modules/Pop3Client.sys.mjs:1625
   read resource:///modules/LineReader.sys.mjs:67

Pop3Client.sys.mjs:1627:24 pop3.server1.2: Got an error; name=pop3MessageWriteError Pop3Client.sys.mjs:1702:20 NS_ERROR_OUT_OF_MEMORY: Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIPop3Sink.incorporateWrite]

I recently had to restore my thunderbird app as I had issues with my laptop. I do not run Avast...I have tried the 'repair' option in folder properties in thunderbird. Nothing seems to help. I would appreciate any assistance you can give me. I have been using Thunderbird for....well it has been aloooong time and I have never had any issues with it previously. I am running WIn 11 Pro.

Не работает почта.Письма не приходят и не отправляются. при отправки письма выдает ошибку

Ошибка отправления сообщения. Ошибка отправления почты. Почтовый сервер ответил: LTD BeGet: You can send from only domains with BeGet MX records in DNS. Убедитесь, что указанный вами в параметрах учётной записи адрес электронной почты верен, и попробуйте снова.

I've used Thunderbird for years. computer crashed and I'm trying to install Thunderbird on my new PC. Thunderbird cannot find account. I've checked with my provider several times and all settings are correct. Any ideas? I've also downloaded installed and uninstalled 5 times today with the same result.

I have checked the mail setting, they seem to be correct, but this is the message I get when trying to send from any of my email accts.

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.