How to delete frozen email in single command?
You can delete the frozen emails by using the following command from shell but make sure that you have logged in as a root user. Basically the frozen emails causes the email delay issue on server therefore its always better to delete the frozen without wasting any time, you can also set the cron to delete the frozen emails automatically.
exim -bp | awk ‘$6~”frozen” { print $3 }’ | xargs exim -Mrm