That's what I mistakenly thought, at first. However, nothing will ever
connect to your server with the IP address of 64.94.110.11, so you should
never have the opportunity to resolve the IP to a name. Rather, they will
connect with a bogus hostname or mail domain, and the forward lookup (A
record) will resolve to 64.94.110.11.
At least bogus domain MX records are not resolving to this VeriSlime
address.
Bill
- Original Message -
From: Joshua Levitsky [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, September 15, 2003 8:36 PM
Subject: Re: [Declude.JunkMail] Change to .com/.net behavior
On Sep 15, 2003, at 11:11 PM, wayne wrote:
In [EMAIL PROTECTED] Matt Larson
[EMAIL PROTECTED] writes:
Today VeriSign is adding a wildcard A record to the .com and .net
zones. The wildcard record in the .net zone was activated from
10:45AM EDT to 13:30PM EDT. The wildcard record in the .com zone is
being added now.
Well, I hope you have the worlds most secure server running on this IP
address as it is going to be a prime target for crackers.
And, just to give you some idea how carefully VeriSlim considered this
aspect, I saw this link on /.
http://sitefinder.verisign.com/lpc?url='%3E%3Ch1%3Ehi%20mom%3C/h1%3E
;; ANSWER SECTION:
11.110.94.64.in-addr.arpa. 900 IN PTR
sitefinder-idn.verisign.com.
I was thinking that if email came from a bogus domain that when I look
up the PTR on my email server, if it is sitefinder-idn.verisign.com
then could I block that mail and never be blocking legitimate mail?
-Josh
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