I decided to run a supervised copy of qmail. As I found in the list archiv, I was not the first one who has trouble with the pipe in the /var/qmail/rc file: exec env - PATH="/var/qmail/bin:$PATH" \ qmail-start ./Mailbox accustamp | setuser qmaill cyclog /var/log/qmail But I also found that the online FAQ on djb's qmail page has changed on how to use cyclog. It says now: Replace splogger qmail with sh -c 'accustamp | cyclog /var/qmail/log'. Now my /var/qmail/rc file with exec env - PATH="/var/qmail/bin:$PATH" \ qmail-start ./Mailbox sh -c 'accustamp | cyclog /var/log/qmail' works without any problem under supervise. I hope this information is helpful. -- Helmut