Qmail is too good

[Jose de Leon]

I'm having a problem that is due to the fact that QMail runs too smoothly.

I can't remember how I turned off all those mailer-daemon failure notices.
I want to turn it back on temporarily, but QMail is such a good program that
you forget how to configure it after awhile.

Anybody have an idea what I might have done to turn off mailer-daemon
failure messages?  I looked at various .qmail files with no luck.