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Re: What *are* they smoking?

  • From: Matthew Sullivan
  • Date: Tue Sep 16 00:34:24 2003

Patrick W. Gilmore wrote:

-- On Tuesday, September 16, 2003 00:56 +0200
-- Niels Bakker <[email protected]> supposedly wrote:

A wildcard A record in the net TLD.

$ host does.really-not-exist.net
does.really-not-exist.net has address 64.94.110.11

$ host 64.94.110.11
11.110.94.64.IN-ADDR.ARPA domain name pointer sitefinder-idn.verisign.com

It even responds on port 25 (says 550 on every RCPT TO). Gah.

No, it accepts if the from domain exists - but only if it *REALLY* exists.

[...]
rcpt to: [email protected]
250 OK
mail from: [email protected]
550 User domain does not exist.
mail from: [email protected]
250 OK

Nice that their spam filters still work. :(

And I love the 221 close message:

data
221 snubby1-wcwest Snubby Mail Rejector Daemon v1.3 closing transmission channel
Connection closed by foreign host.

Worse than that - it's a fixed sequence of responses...

$ telnet akdjflasdf.com 25
Trying 64.94.110.11...
Connected to akdjflasdf.com.
Escape character is '^]'.
220 snubby4-wceast Snubby Mail Rejector Daemon v1.3 ready
sdfg
250 OK
sdfgsdfgsdfgsdf
250 OK
sdfgdfgaegqaergqaergvav
550 User domain does not exist.
asdfgasdfgasdf
250 OK
sdfasdfadsfasdf
221 snubby4-wceast Snubby Mail Rejector Daemon v1.3 closing transmission channel
Connection closed by foreign host.

/ Mat