Exim4 commands

Alright. I’ve been wrestling with my Exim configuration the last couple of days. It seems I have to learn all the commands all over each time I find a problem so here is a short list for me to remember:

I also found this snippet that should delete all messages that are beeing bounced back to non existent recipients (spammers):
exiqgrep -f "<>" -i | xargs exim -Mrm