temporary failure warning message

[J.M. Roth \(iip\)]

Hello there,

is it possible to configure qmail to send out a "temporary failure" message
or something if mail can't be delivered rightaway?
One of our users had an important mail in the queue which was returned to
him only 7 days later ('cause of a DNS failure), way too late... Some
failure messages inbetween would be quite helpful.

Regards!

J.M. Roth
________________________________________________________