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Thunderbird has blocked sending of email

I-Thunderbird Email and messaging
david replied
joe221
joe221

We have not been blacklisted at Spamhaus.com. Yet, Thunderbird ONLY is blocking of email sent via its SMTP. IP being blocked according to Spamhaus is 162.xxx.xxx.xxx But Spamhaus shows that neither this IP nor my email, [edited] @wrigleyranch.com is being blocked or blacklisted. We are able to send email thru our email client at BlueHost. So, it is definite that we are NOT BLACKLISTED. The last update (automatic) by Thunderbird was January 14, 2026. I'm am suspecting that this update has caused this error. That's why I'm writing you. Can I revert to the prior Thunderbird update to test this theory? I cannot see how to do that. I need help!!! Receiving email is unaffected by this malfunction.

Thank you, Joe Amadeo [edited from community support forum] landline, no texts [edited] @wrigleyranch.com

We have not been blacklisted at Spamhaus.com. Yet, Thunderbird ONLY is blocking of email sent via its SMTP. IP being blocked according to Spamhaus is 162.xxx.xxx.xxx But Spamhaus shows that neither this IP nor my email, [edited] @wrigleyranch.com is being blocked or blacklisted. We are able to send email thru our email client at BlueHost. So, it is definite that we are NOT BLACKLISTED. The last update (automatic) by Thunderbird was January 14, 2026. I'm am suspecting that this update has caused this error. That's why I'm writing you. Can I revert to the prior Thunderbird update to test this theory? I cannot see how to do that. I need help!!! Receiving email is unaffected by this malfunction. Thank you, Joe Amadeo [edited from community support forum] landline, no texts [edited] @wrigleyranch.com

Okulungisiwe ngu James

All Replies (1)

david
david
  • Top 10 Contributor

Thunderbird is but a simple email client; it sends your message via the SMTP server for your account and displays the message sent back. Thunderbird has no 'intelligence' of any kind, and could not do that. Maybe, if you read the full Spamhaus message, it will provide more information. And, you might post the complete spamhaue URL message, including IP number so it can be read by someone here. thank you

Buza umbuzo

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