Thunderbird Community Forum

i have a problem in the connection we need to have remote session

• Client : Mozilla Thunderbird (version utilisée) • Serveur SMTP : smtp-mail.outlook.com • Port : 587 • Sécurité : SSL/TLS • Authentification : OAuth2 • Message d’erreur exact indiquant un timeout / échec de connexion SMTP • Confirmation que : o le compte fonctionne en webmail o le service Microsoft est accessible o le problème persiste malgré un changement de réseau (si testé)

Receive the following error message whenever I attempt to reply to or forward an e-mail

"Send Message Error. Sending of the message failed. The message could not be sent because the connection to the Outdoing server (SMTP) mail.thorneplumbing.com timed out. Try again"

This has been going on for some time now, but does not happen when I use Thunderbird on my i-phone. Just on a PC. Please advise.

Thank you!

Hi, I use hushmail as an email provider, and thunderbird to download my hushmail emails onto my laptop. I recently changed the hushmail password, but I cannot see how to update it in thunderbird. I have read several help posts suggesting I need to change the password in 'saved logins', but I don't have any saved passwords there. I know the password is correct because I can access my emails with it online on the hushmail site, just not through thunderbird. I have attached pics showing that I don't have any saved logins, and the message I get when I try to download emails. Any help would be appreciated, thanks in advance.

This just started 4 or 5 days ago ( 2026.1.23 ish). I did not update TB nor make any changes to the account in question (that I'm aware of). The errors show up every few minutes, with a 'beep' sound and notification pop-up showing up each time - is very annoying.

I was running v145 when it started. I saw there was an update to 147 and installed that; same issue. I restarted TB into Troubleshooting mode and am still getting the error.

This is running on MacOS 15.7.3. Hardware is MacMini (2024) with Apple M4 chip.

Generally I still seem able to received & send emails.

I opened Activity Manager and Error Console. Error console doesn't seem to have much (using 'Multiprocess', with Errors, Warnings, Logs, Debug enabled). Activity manager shows things such as:

<my account name>

   Connection to server outlook.office365.com was interrupted.    09:49
   Failed to connect to server outlook.office365.com.    09:52
   Authentication failure while connecting to server outlook.office365.com.    09:58
   Authentication failure while connecting to server outlook.office365.com.    10:03
   Connection to server outlook.office365.com was interrupted.    10:10
   Connection to server outlook.office365.com was interrupted.    10:14
   Connection to server outlook.office365.com was interrupted.    10:20

There was an error or log entry that I was able to find a few days ago that made me think it was Calendar related, but now I'm not finding that message.

I have been receiving this error message for the past week or 2

An error occurred with the POP3 mail server. Mail server pop.iprimus.com.au responded: Cannot connect to POP server 203.134.11.3 (203.134.11.3:110), connect error 10060

My email provider is GMX and I have completed 2fa with an app-specific password for Thunderbird. The setup was authenticated.

For Thunderbird, under my email address setup I have included my name, email address (rdoty@gmx.com), the app-specific password for Thunderbird and the personal password for my email account.

Under my account settings I have entered my Account Name as my email address and also for the email address entry. Under Privacy and Security/Saved Passwords they are as follows; imap://gmx.com (imap://gmx.com) along with the app-specific password, but the SMTP does not show and I'm not sure how that gets entered.

The SMTP info is included under Account Settings as follows; Description = GMX Freemail, Server Name = mail.gmx.com, Port=465, Connection Security = SSL/TLS, Authentication Method= Normal Password and Username = rdoty

I did disable Encrypted Web Scan in my AV software Bitdefender

When I select Get Messages Thunderbird always times out and won't connect. What do I need to do to get TB to recognize GMX?

for no reason yesterday my thunderbird started droping this error: Mozila thunderbird ESR: connection to serverpop3.b-primus.lt was reset. no settings was changed, i was using it perfectly and at one time it just happend (as well email on my phone is still working). it seems it happend after some of thunderbird updates. Double checked all settings and passwords just in case and they are correct. any ideas ?

As of March 24, my Mozilla Thunderbird email seemingly cannot connect to the internet. Therefore, I have no ability to receive of send emails. I am a member of the Best Buy tech support capability and their technicians spent several hours trying to correct this issue and finally stated that I need to seek actual Mozilla Thunderbird technician support to correct the lack of connectivity.

Hi there, it seems I'm suffering from the same problems as others in several countries. I have also not been able to access my gmx.com account via Thunderbird for about a week now. I live in Belgium and use a Proton VPN, in case this is relevant. I can't find how to delete cookies in history, nor any other potential solutions to the problem. Any help offered is greatly appreciated! Best, Doreen

Please help! I have not received emails on thunderbird for a week. I have had to go through my web browser. I received messages that thunderbird is temporarily unavailable. What is the problem? How can I resolve this issue? Thank you very much!!

Hi,

OS: Linux Manjaro 6.18.12-1 (Cinnamon 6.6.7) Thunderbird: 147.0.1 Email: google account

Everything worked perfect till I upgraded to version 147.0.1 When after replying or writing new email, hitting the [send] button I always get this 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."

Click [OK] and save the message or messages is dropping them in the 'Drafts' folder. Close Thunderbird and start it again. Then double click the messages in the [Drafts] folder and hit the [Send] button, will send the messages without problem.

Nothing changed to my setup, I only upgraded to 147.0.1. Another weird thing: every-time I start Thunderbird it creates a Thunderbird directory under my home.

Is one connected to the other? Has somebody an idea what's going on/wrong?

Many thanks in advance

One of my two outlook email accounts no longer appears in Thunderbird, which says it is authenticated but not connected. This happened suddenly. I can still get the messages by going onto outlook.com. How do I get it back on Thunderbird?

I am using the Thunderbird software (140.7.1esr 64-bit) for mail merge purposes on a Windows 11 operating system. However, when I start the mail merge process, it begins initially but then automatically disconnects before completing the task.

Due to this issue, I am unable to complete the mail merge properly. Kindly look into this problem and provide a solution as soon as possible.

Thank you.

I received this message: Unable to connect

The connection was refused when attempting to contact localhost.

   The site could be temporarily unavailable or too busy. Try again in a few moments.
   If you are unable to load any pages, check your computer’s network connection.
   If your computer or network is protected by a firewall or proxy, make sure that Thunderbird is permitted to access the web.

I am not receiving new email. What do I need to do to get it working again?

In Thunderbird account setup, I correctly enter my email account, name and password. I know it works because I can open my email on the Spectrum login page. I get a confirmation green box then when I press done a yellow box says unable to login at server, probably wrong configuration, username or password.