Can't Send mail via Thunderbird
I have a frontier.com account that uses Yahoo as its server. After changing to Windows 11 >_< I updated Thunderbird and now I can receive messages to my frontier.com address but I can't SEND any. Why? I get this error message over and over: "Sending of the message failed. An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your email address is correct in your account settings and try again."
I have a frontier.com account that uses Yahoo as its server. After changing to Windows 11 >_< I updated Thunderbird and now I can receive messages to my frontier.com address but I can't SEND any. Why? I get this error message over and over: "Sending of the message failed. An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your email address is correct in your account settings and try again."
All Replies (1)
Hi mrapol,
For us to better investigate this issue, we will need some more information.
Could you please do the following?
- Open the menu
> Help > Troubleshooting Information, then click Copy text to Clipboard.
- Go to https://pastebin.mozilla.org/, paste the clipboard by right clicking in the large text area, select paste from the menu, change the retention period to expire in 28 days, use the Paste Snippet button to create a page containing your info, then copy the resulting URL (address) of the page created.
- Open a reply to this post, and paste the URL to your troubleshooting information you just copied.
- Please also provide results for the following test on your system
- Does Thunderbird work as expected in Thunderbird troubleshooting mode?
- Does Thunderbird work as expected with your OS started in safe mode with Networking. Instructions for each operating system: Windows 10/11, Windows 8, Windows 7, OSX
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