In case the SMTP Server is down, or being rebooted or some intermittent error, Youtrack doesn't seem to be re-sending notifications to users. Is there a way to set it up and I'm missing it? As far as I can see it only records the fact in the log and that's it. Not even a notice to admin.
There is a number of error messages http://www.greenend.org.uk/rjk/tech/smtpreplies.html
that could happen and we don't want users to miss notifications only because of a temporary glitch. Email protocols are actually supposed to re-deliver message several times in case of failures.