> >Accoprding to your specs you would need to use Net::DNS to find the >primary MX and then use Net::SMTP to talk to that box. The SMTP >command you're looking for would be "VFRY" - however, you should be >aware that nowadays many mail relays either respond OK to any VRFY >query, or don't implement the command at all for security reasons. > >And that does not even count the cases when a mail relay can't know >the user names becauise even though it is primary MX, it is not the >box that holds the user accounts.
I agree. It is not reliable. Might I suggest you to do email probing instead? Send an email message to the target, and if no NDF (non delivery failure) is returned, then you'd be assured that the message landed onto a working mailbox. However, you'd have to wait several days (5~10 days). Likewise, the targets would not like it. They might think you are a spammer or email address harvester. In the end, there is no perfect solution to this particular problem. Jaime > >HTH, >Thomas >-- >Home Page: http://baetzler.de/ - Humor Archive http://baetzler.de/humor/ > >_______________________________________________ >Perl-Win32-Users mailing list >[EMAIL PROTECTED] >To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs > > _______________________________________________ Perl-Win32-Users mailing list [EMAIL PROTECTED] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
