*** Collection of IP space considered dynamic
(Dynamic rDNS) 195.xx.xx.xxx/xx
The IP address space identified above is listed in SORBS DUHL
list. The IP space _not_ depicted above, is _not_ listed in SORBS DUHL
or is eligible for delisting. More information about this list can be
found here (Please read this information thoroughly)
http://www.sorbs.net/faq/dul.shtml
IP Addresses with defined rDNS and a TTL longer than 43200 seconds,
have been included because they seem to point to a dynamic IP
address. According to our policies, we cannot delist said IP address
until actions explained below, are completed in your part.
Names that look generic (ie, include the IP address or a part of it,
mention the keywords "pool", "ppp", "customer", etc) are considered by
us as an indicator of the IP address being dynamically
assigned. You'll find more information regarding this topic at the
following RFC draft (single URL, no spaces):
http://www.ietf.org/internet-drafts/draft-msullivan-dnsop-generic-naming-schemes-00.txt
(or use this shorter version instead)
http://*****.com/mo9al
Note that SORBS' tools may cache its results for up to 48
hours. Therefore, if you've recently changed your DNS configuration or
intend to do so, please wait before asking us to review your case.
We are setting this ticket to 'Rejected', as an action is required
in your part before we can update our lists regarding the IP address
you wrote us about. After one or more of the three options set forth
above has been implemented, please reopen this ticket and we will
re-evaluate your case.
If you choose to modify your current DNS configuration, it is very
important that you verify the correctness of your changes with a third
party before asking us to review your case. This will help us all to
help you faster. A reliable third party is the "Reverse DNS Lookup
tool" available at
http://www.dnsstuff.com/
Also, the tools used by SORBS can cache DNS lookup results for up to
48 hours. Please make sure to wait at least this time before
requesting a review of this case or submitting a related one.
Your options at this time, are as follows:
(1) Send your email through your ISP's mail servers, as suggested in
various places at our website.
- or -
(2) Have your DNS data modified so that the listed IP address has a
clearly non-dynamic rDNS. We suggest that you include the keyword
"static" on this name, to avoid future listings. Also, insure that the
TTL is set to no less than 43200 seconds (we recommend 86400).
To comply with RFC1912 you must have a matching A record for every PTR
record.
- or -
(3) Ask your ISP to get in touch with SORBS with the list of dynamic
and static IP allocations within its network, so that our DUHL list
can be updated. Note that many large ISPs do this periodically to
reduce the inconvenience to its users. In this case, the communication
must come from a RIR contact for the affected IP space.
Also note that if you adjust your DNS configuration properly, you may
be able to use the automated delisting facility at
https://www.dnsbl.sorbs.net/scgi-bin/dulexclusions
This facility can allow you to quickly delist IP addresses under your
control without intervention of SORBS' staff.
Thank you
