Jan 23 02:59:44 localhost postfix/local[11441]: BC96E1B98784B: to=<froschpopo@mail.example.tld>, orig_to=<froschpopo@localhost>, relay=local, delay=3, status=bounced (mail forwarding loop for [EMAIL=froschpopo@mail.example.tld]froschpopo@mail.example.tld[/EMAIL])