>>>>> "KEVIN" == KEVIN ZEMBOWER <[EMAIL PROTECTED]> writes:
KEVIN> With that said, I still wonder why a perl program couldn't use a module KEVIN> like Net::Telnet to initiate a regular SMTP dialog with the host pointed KEVIN> to by the A or MX record in the user's email address. Then, it could KEVIN> return the response to the RCPT command, either "ok" or "No such KEVIN> recipient" or whatever the response was, and possibly enter a RSET KEVIN> command, or just stop sending anything to the recipient's SMTP host and KEVIN> let it time out. Because RCPT's lie. Because some gateways have to accept ALL mail to deliver further down, and you'll get the bounce from the further, in accessible machine. Because some gateways are now configured as "you'll just have to send it and see". Real example... send email to "[EMAIL PROTECTED]". You'll get no initial bounce at the MX gateway, but a nicely formatted bounce message further down. And I'd suggest there are FAR MORE of these than there are valid addresses! In other words, it *cannot* be done in real time. What part of "cannot" do you not get, here? -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <[EMAIL PROTECTED]> <URL:http://www.stonehenge.com/merlyn/> Perl/Unix/security consulting, Technical writing, Comedy, etc. etc. See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training! -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
