On Tue, 31 Dec 2002 08:23:00 CST, Andrew Bosch <[log in to unmask]>  said:
> I have noticed that when Listserv uses the list address in the To line, some
> mail servers return a 5xx error message with the text "Relay denied" or
> similar. If I use Full822 headers or Short822 headers, where the recipient is
> listed in the To line, then these same recipients successfully receive the
> messages. Is anyone else having this problem and what are you doing about
> it?

The usual cause is a site running a mailer so dain-bramaged that they fail
to understand that they need to look at the RFC821 MAIL TO: header, as for
mailing lists the RFC822 To: field is often the listname rather than the
mailbox of the recipient.  Do not encourage them by trying to cater to them.
The only proper thing to do is take them out back and smack them upside the
head a few times to pound some sense into them.
--
                                Valdis Kletnieks
                                Computer Systems Senior Engineer
                                Virginia Tech