Here's the situation (still running 1.8c): listserv box -> outgoing relay machine -> INTERNET (qmail) (sendmail 8.9.3) The outgoing relay machine is set as the SMTP_FORWARD machine. When there is a permanent mail delivery failure (ie no user, no domain, etc) for a user confirmation mail (ie asking them to confirm a subscription, for example -- this seems to be the only type), the message is bounced to the POSTMASTER of the RELAY (sendmail) machine. Shouldn't the mail be returned to the sender (ie the listserv@ the qmail box?) As postmaster of the relay box, I'm really getting tired of getting 30 bounced mails every hour from some person who sends mail with a malformed FROM header. I *think* this is because listserv sends out the notification emails with a Null From Header. (ie From:<>) Is this true? (I know this is true for outgoing error messages -- but these are outgoing confirmation requests, not error messages). This seems like broken functionality to me -- the email is coming from the listserv, so why isn't it setting the From header to listserv@ the qmail server? Whats wierd is that it *appears* (have to confirm) that NON-FATAL delivery status notification emails are properly routed back to listserv@ the qmail machine. Does that data point point to anything? TIA -Gabe