On 14/06/16 10:19, "陈俊平 via mailop.org"
<chenjunp...@corp.netease.com> wrote:
Hello All,
One of my IP address 123.58.177.172 got blacklisted on SpamRats' RBL,
when tried removing it from the blacklist I got a rejection as below:
/>> Does IP Address comply with reverse hostname naming convention...
Failed!/
/>> RATS-Dyna - On the list. To be removed go here/
/>>/
/>> The IP address you have specified does not comply with best
practices. Currently, the reverse DNS for this IP address is:
m172-177.vip.163.com. For more information, please review the above
"List Specifications" section, or this best practice documentation
<http://spamauditor.org/best-practices/check-ip-reverse-dns>./
This IP address is definitely a static one(rather than a dynamic IP)
and it has a proper PTR record(not violating the RFC 1035
<http://tools.ietf.org/html/rfc1035#page-12>) as:
/$ dig -x 123.58.177.172/
/172.177.58.123.in-addr.arpa. 86400 IN PTR m172-177.vip.163.com./
So I am wondering why SpamRats says "not comply with best practices",
while I've contacted their admin on Help page, are there any guys got
such kind of warnings?
I appreciate any info and discussion, thank you very much.
Because the hostname contains the last two octets of the IP address,
e.g. it "looks" dynamic and basically it is dynamic - it's an
automatically generated name based on the IP address.
Whilst others might disagree with this, there's plenty of places and
software that with look at that PTR and say "it's dynamic" and treat it
accordingly and they don't have to use a DNSBL to determine that because
it's simple to do with heuristics.
Kind regards,
Steve.
--
Steve Freegard
Development Director
Fort Systems Ltd.
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