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Cannot send emails on Thunderbird after 115.12.2 update - "Authentification error (VM401)" I use Virgin Media. I can receive emails OK.
After updating to Thunderbird version 115.12.2(32 bit) two days ago, I can no longer send emails. I get an error message "Authentification error (VM401)" I use Virgin Media. I can receive emails OK. I have not changed any server settings for a long time. I have been in touch with Virgin Media, they say the problem is with Thunderbird as I can send emails from on their one line system. I can also send emails from my Android phone. Any help would be appreciated.
Wayne Mery moo ko soppali ci
All Replies (1)
Thunderbird has to send via the smtp protocol, so just because it works from the webmail account does not mean it's working.
That error message means Virgin server does not like whatever you have set up to use for sending from that account.
Please post the following information so we understand the current settings. In Thunderbird Help > Troubleshooting Information Scroll down to 'Mail and News accounts' Copy all the data in that area and then paste it into a reply box in this forum question.
It will tell us what server settings are currently being used and whether you have more than one account.