Re: Static IP address blocked by anti spam lists
- From: "Frank McCallister SBS MVP" <anonymous>
- Date: Thu, 9 Feb 2006 09:56:16 -0600
Contact your ISP to setup a PTR record for you. If they won't then you will
have to use their smarthost to send or use a 3rd party smarthost like
dyndns.org mailhop outbound
--
Frank McCallister SBS MVP
COMPUMAC
"Oswaldo" <Oswaldo@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:5E75D9A1-C6CC-4BC3-AD12-6A7CEEE24A03@xxxxxxxxxxxxxxxx
Hi,
I have SBS 2003 hosting our website and email using Exchange, I have a DSL
line with a static IP address that my ISP provided and everything was
working
fine until I started getting rejected emails because our IP address is
listed
as spam or as a dynamic address. I contact one of these lists asking them
to
remove us and they told me this:
Unfortunately, the IP address XXX.XX.XX.XX is not eligible for unblocking.
This IP address comes from a cable/dsl/dialup pool, or other dynamic IP
pool.
Connections coming from a pool are nearly impossible to trace back to the
originating computer. It is for that very reason that cable/dsl/dialup
pools
are very commonly used by spammers and virus writers.
If you are an end-user in a cable/dsl/dialup pool, then you should
configure
your mail software to send outgoing mail through your ISP's dedicated
outgoing mail server. The server is usually named 'smtp.example.com' or
'mail.example.com'. The ISP's support line will be able to give you more
details. We have whitelisted the mail server of most major ISPs, so the
will get through if sent through these systems.
If you are the server admin, you can create a reverse DNS PTR record for
the
IP address involved and map it back to the name given in the MX record. If
there are multiple MX entries, the rDNS PTR record will need to be done
for
each. We can not assist with the creation of these records. Once created
and
propagated you can submit a request again so we can review the IP in
question
and determine if it is available for unblocking.
I don't have much experience with Exchange and I don't know how to
configure
Exchange to send outgoing mail through my ISP's dedicated outgoing mail
server or how to set up the PTR record but I think that the PTR has to be
set
by my ISP right? I have the MX pointing to my IP and I can send and
receive
mail to almost everybody (just not to the people using these lists).
Could anyone guide me to the best solution, the PTR or use my ISPs
dedicated
outgoing mail and how to do it?
Thank you very much for your help
--
Oswaldo Cortes
.
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