i'v been getting emails send to my mailserver for random unknown accounts which produces bounce emails for the unsuspecting victims in the reply-to header. thinking if upas/send should reject mails instead when called from smtpd to avoid the backscatter. patched my local version so upas/send will never produce a bounce when passed the -r flag and print "mail rejected: ...." to standard error instead. this causes smtpd to return a 5.0.0 status.
are there good reasons not to do this in general? -- cinap
