Redmine

I'm using the imap-task to receive emails and create issues on a specific project:

rake -f /var/www/redmine/Rakefile redmine:email:receive_imap RAILS_ENV="production" host=<host> username=redmine password=<pass> port=993 ssl=true unknown_user=accept no_permission_check=1 project=<project> tracker=Feature

which works fine. Setting unknown_user=accept creates the issues under the anonymous-account but any information about the original sender is lost. I would like to see an option to add the sender e-mail address and name to the description so it's not completly lost.