I send emails with C-x m and AFAIK everything is configured OK. However, recently I got this response when I wanted to send an email:
smtpmail-send-it: Sending failed: 535 5.7.8 Error: authentication failed: Connection lost to authentication server in response to AUTH PLAIN <long hash here>
My second attempt resulted in (from
Sending via mail...
Sending email done
Now I have two questions:
Why did it fail the first time?
Can I be sure that my email has been sent after all?
Update: through experiments I've discovered the following:
This happens when title of email is written using Cyrillic script;
Email is delivered anyway on second attempt.
Seems it's sort of bug, but I will wait for additional clarification.