"could not load valid user" message

Looking at the templates, I don’t see where the “could not load a valid
user” message is generated. Am I missing something obvious? Further,
these messages always seem to come from help@myrtserver.foo.com. How can
I change that? Should I just alias that address to an autoresponder?

David Griffith

A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?