Uucp and rejected mail

[Lauren Weinstein]

This behavior has been fixed in several ways in many situations.
Sites running advanced mailers (sendmail, etc.) usually are smart enough
to route mail failure notifications back to the originator to the
extent that he/she can be determined in a complex internet environment.

A number of newer uucp's (including all of mine) use the new X. file
"R" line (return address) convention to determine routing for failed
mail, which helps quite a lot and allows multiple hop failed mail
routing.

--Lauren--