This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Denc nañu waxtaan wii. Yónneel yeneen laaj soo soxlaa ndimbal.

Cannot send email messages with Thunderbird

  • 1 tontu
  • 1 am na jafe-jafe bii
  • 4 views
  • i mujjee tontu mooy sfhowes

tuokemp
tuokemp
more options

I have used Thunderbird for many years. I recently updated to Thunderbird 91.3.2 and am now able to receive email messages, but I cannot send them using Thunderbird. (My previous version was Thunderbird 78). I have tried the troubleshooting steps in the following article, but nothing helped: https://support.mozilla.org/en-US/kb/cannot-send-messages I'll attach a screenshot of my current SMTP settings. My email provider is Localnet.com My ISP is Spectrum My computer is running Windows 10 Home, version 21H1 I use Webroot SecureAnywhere for antivirus and Windows Defender for the firewall. When I tried to send an email message, I got the following error message:

Sending of the message failed. An error occurred while sending mail. The mail server responded: <cpe-76-91-41-181.socal.res.rr.com[76.91.41.181]>: Client host rejected: Access denied. Please check the message recipient and try again.

I have used Thunderbird for many years. I recently updated to Thunderbird 91.3.2 and am now able to receive email messages, but I cannot send them using Thunderbird. (My previous version was Thunderbird 78). I have tried the troubleshooting steps in the following article, but nothing helped: https://support.mozilla.org/en-US/kb/cannot-send-messages I'll attach a screenshot of my current SMTP settings. My email provider is Localnet.com My ISP is Spectrum My computer is running Windows 10 Home, version 21H1 I use Webroot SecureAnywhere for antivirus and Windows Defender for the firewall. When I tried to send an email message, I got the following error message: Sending of the message failed. An error occurred while sending mail. The mail server responded: <cpe-76-91-41-181.socal.res.rr.com[76.91.41.181]>: Client host rejected: Access denied. Please check the message recipient and try again.
Nataali seetu yiñ ci takkaale

All Replies (1)

sfhowes
sfhowes
  • Top 10 Contributor
more options

Based on their limited documentation, they don't offer secure connections, so the outgoing server settings should be: smtp.localnet.com on port 25 or 587 (not specified), connection security = none, authentication = no authentication.

https://start.localnet.com/help.php?id=1