I completely agree with jonwestburne CRITICAL because the user does not know the email was not sent.
I had again a server BUSY condition. thunderbird version 78.7.1(64-bit) on GNU/Linux Ubuntu 20.04 LTS platform. popup "load too high (#4.3.0)" and then the email is in 'sent' folder of my local Filesystem Archive. my automatic "CC to sender" proves that it was not processed by server. I did not receive my CC. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1215882 Title: Emails are silently discarded on 554 reply to STARTTLS To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1215882/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
