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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

After upgrade, get error message when sending messages

  • 1 resposta
  • 1 has this problem
  • 13 views
  • Last reply by Matt

Seminolecapt
Seminolecapt
more options

Responded to prompt and upgraded to Thunderbird 38.2.0. Now cannot send emails. After hitting send, receive the following error message, "Sending of message failed: The message could not be sent using Outgoing server (SMTP) smtps.musc.edu for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again." Checked all outgoing server settings and they are correct. Tried restarting Thunderbird and computer. Tried uninstalling/reinstalling Thunderbird. Tried running Thunderbird in safe mode. Problem remains, same error message every time. Old version on another computer runs fine. What can be done? Is it possible to install the old version?

Responded to prompt and upgraded to Thunderbird 38.2.0. Now cannot send emails. After hitting send, receive the following error message, "Sending of message failed: The message could not be sent using Outgoing server (SMTP) smtps.musc.edu for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again." Checked all outgoing server settings and they are correct. Tried restarting Thunderbird and computer. Tried uninstalling/reinstalling Thunderbird. Tried running Thunderbird in safe mode. Problem remains, same error message every time. Old version on another computer runs fine. What can be done? Is it possible to install the old version?

All Replies (1)

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options
@Seminolecapt 38.1 (which few people actually received and 38.2 have fixes for LogJam which disable insecure server connections. No security is still Ok, it is broken Cyphers and SSL/TLS that are affected by the change See http://thunderbirdtweaks.blogspot.com.au/2015/07/logjam-and-thunderbird.html I notice you have a support topic open here https://support.mozilla.org/en-US/questions/1078984 I will not be addressing your issue here again.

Please make replies on this thread. (I have corrected the version number I messed up in the other thread.)