[ILUG] mail header flags

[Vincent Cunniffe]

As an administrator of multiple machines, several running mail handling
software for people who don't always enter their email address correctly
in web-based systems, I get a lot of delivery failures in my mailbox.

Is there a header that I can add to these outgoing mails which will tell
the remote MTA that I don't care whether it can be delivered or not, and
if not, to fail silently?

I've googled for this, but can't find anything.

Regards,

Vin