Patrick W. Gilmore wrote:
-- On Tuesday, September 16, 2003 00:56 +0200 -- Niels Bakker <niels=nanog@bakker.net> 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: fooo@baaaaaaaaaaaaaaaaaaaaaaaaaaar.net 250 OK mail from: fooooo@baaaaaaaaaaarrrrrrrrrrrr.net 550 User domain does not exist. mail from: patrick@ianai.net 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