Re: uncooperative DNSBLs, was several messages

[David Romerstein <romer at hanov3r.com>]

On Thu, 13 Nov 2008, David Romerstein wrote:

> I believe that it's listed 'correctly', per that FAQ, for one reason:

> CNAME, not PTR. SORBS *appears* to want PTRs (with appropriate TTLs).

Following up to myself (bad form!), I'm mistaken. This IP was probably 
originally listed because it's in a huge swath of hostnames with generic 
rDNS. I submitted a ticket to have it delisted, was rejected by the robot, 
and found (in discussion w/the SORBS admin[1]) that a DNS lookup on that 
IP failed:

[86400] 141.17.85.65.in-addr.arpa domain name pointer newgate.xpasc.com.
Host 142.17.85.65.in-addr.arpa query failed: Connection Timed Out
[86400] 143.17.85.65.in-addr.arpa CNAME pointer 65.85.17.143.xpasc.com.

(Interestingly, out of the whole /24, that's the only lookup that failed)

There's a 48 hour timeout before a new request for this IP can be 
submitted. If this host appears in anyone's MX record, let me know - that 
can push this request to a different queue.

-- D

[1] SORBS' admin, who answered by despite being on a well-deserved 
holiday
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