>> On Mon, 5 Oct 2009 13:59:24 -0400,
>> Bill Moran <wmo...@potentialtech.com> said:
B> Telnet to the service and start a SMTP transaction, but then abort it.
B> If you don't get a rejection after the "rcpt to:" line, then you know
B> the server will accept the mail and you can close the connection without
B> completing the transaction.
B> Note, that this is no guarantee. Some spam catching nonsense may accept
B> the mail right up to end, then throw it away without delivering it.
qmail will accept any valid address on the host, because the message
might be forwarded or handled by a program. "Rcpt to:" always returns
ok unless the address itself is mangled. The VRFY command is always
answered like this to keep people from harvesting addresses:
vrfy <santacla...@example.com>
252 send some mail, i'll try my best
--
Karl Vogel I don't speak for the USAF or my company
Sam: What's going on, Normie?
Norm: My birthday, Sammy. Give me a beer, stick a candle in it,
and I'll blow out my liver. --"Cheers"
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