Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Sök i support

Akta dig för supportbedrägerier: Vi kommer aldrig att be dig att ringa eller skicka ett sms till ett telefonnummer eller dela personlig information. Rapportera misstänkt aktivitet med alternativet "Rapportera missbruk".

Läs mer
Denna tråd har arkiverats. Ställ en ny fråga om du behöver hjälp.
Arkiverad

Can not send emails from Thunderbird

Thunderbird Skicka och ta emot e-post
reiring besvarat
reiring
reiring

Using Thunderbird 140.5.0esr (64-bit) email program, can not send emails. Get message: Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: Connection from 69.119.30.125 refused. Have multiple email accounts - all get same response. Have tried several computers -all get same response. Can receive emails with no problem. I have spent several hours with my service provider [Optimum] checking/changing Server settings to no avail. They claim all my settings are correct and say the problem is not on their end. On the Optimum website email – I can send emails with no problem. I installed Outlook and set it up to the same servers and can send emails from there so it would seem Thunderbird is the problem.

Running WIN10 on 1 machine, WIN11 on another. Both same issue

Using Thunderbird 140.5.0esr (64-bit) email program, can not send emails. Get message: Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: Connection from 69.119.30.125 refused. Have multiple email accounts - all get same response. Have tried several computers -all get same response. Can receive emails with no problem. I have spent several hours with my service provider [Optimum] checking/changing Server settings to no avail. They claim all my settings are correct and say the problem is not on their end. On the Optimum website email – I can send emails with no problem. I installed Outlook and set it up to the same servers and can send emails from there so it would seem Thunderbird is the problem. Running WIN10 on 1 machine, WIN11 on another. Both same issue
Bifogade skärmdumpar

Alla svar (2)

sfhowes
sfhowes

Two issues: first, you might want to try mail.optimum.net, 465, SSL/TLS, for the outgoing server.

https://www.optimum.net/FAQ/#/answers/a_id/216

Second, make sure each account is sending on its separate smtp server with the User Name matching the email address of the sending account:

https://support.mozilla.org/en-US/questions/1350593

reiring
reiring Frågans ägare

1. Tried Port 465 and SSL/TLS - does not work. Tried several other ports & different security settings during my support interaction with cable company.

2. Each account has been set that way for 10+ years. It just stopped working 11/24.