Re: [Exim] Verisign pulls a fast one

On Tue, 16 Sep 2003, Neil Schemenauer wrote:

> It's not a real SMTP server:
>

[ ... ]

> Verisign's stupidity continues to amaze.

Yup - the embezzled domains point to an SMTP server which seems to respond
according to a fixed script:

220,250,250,550,250,drop

for *any* sequence of input.

Thus, if someone mails 2 or more recipients at the same embezzled domain,
then the first will be cleanly rejected but the rest will be defered
because the server just drops the connection.

So the message will fester till queue timeout.

Yuck !


> exim -v 1@???, 2@???, 3@???

Connecting to qweqweqwe.com [64.94.110.11]:25 ... connected
SMTP<< 220 snubby4-wceast Snubby Mail Rejector Daemon v1.3 ready

SMTP>> EHLO whatever
SMTP<< 250 OK

SMTP>> MAIL FROM:<c.edwards@???>
SMTP<< 250 OK

SMTP>> RCPT TO:<1@???>
SMTP<< 550 User domain does not exist.

SMTP>> RCPT TO:<2@???>
SMTP<< 250 OK

SMTP>> RCPT TO:<3@???>
SMTP<< 221 snubby4-wceast Snubby Mail Rejector Daemon v1.3 closing transmission
channel
SMTP>> DATA

[ drops connection ]

LOG: MAIN
SMTP error from remote mailer after RCPT TO:<1@???>: host
qweqweqwe.com [64.94.110.11]: 550 User domain does not exist.

LOG: MAIN
** 1@??? R=dnslookup T=remote_smtp: SMTP error from remote
mailer after RCPT TO:<1@???>: host qweqweqwe.com
[64.94.110.11]: 550 User domain does not exist.

LOG: MAIN
== 2@??? R=dnslookup T=remote_smtp defer (-18): Remote host
qweqweqwe.com [64.94.110.11] closed connection in response to DATA

LOG: MAIN
== 3@??? R=dnslookup T=remote_smtp defer (-18): Remote host
qweqweqwe.com [64.94.110.11] closed connection in response to DATA