aldiyen
2009-11-22 02:08:09 UTC
Hello,
Our IP address, 66.150.201.227, is blacklisted with backscatterer.org.
I am hoping to get more details about the event which caused this,
because our SMTP configuration should not allow either email
backscatter or any sender callouts.
The configuration is like this:
Incoming SMTP connections on this IP are totally blocked by our
firewall. This IP represents the outside gateway for some of our
application servers, which do sometimes send outbound mail, but there
is no computer which will receive an inbound connection on port 25.
There is no MX record or server for the domain this IP represents;
none of the computers behind the firewall would consider themselves to
be authoritative mail servers for any domain whatsoever.
Even if a connection were to somehow make it past the firewall, none
of the servers behind said firewall accept incoming mail of any sort
for any domain (they will deny any RCPT TO immediately), and they do
not allow sending of mail to any outside domains from any IP other
than 127.0.0.1.
I double checked just to be sure, and we definitely do not send any
VRFY requests under any conditions.
Given the aforementioned configuration, I am confused and somewhat
concerned about having this IP blacklisted for either backscatter or
sender callouts. Is there any way we could get more information on the
cause of the blacklisting?
Thanks very much,
-Matt
Our IP address, 66.150.201.227, is blacklisted with backscatterer.org.
I am hoping to get more details about the event which caused this,
because our SMTP configuration should not allow either email
backscatter or any sender callouts.
The configuration is like this:
Incoming SMTP connections on this IP are totally blocked by our
firewall. This IP represents the outside gateway for some of our
application servers, which do sometimes send outbound mail, but there
is no computer which will receive an inbound connection on port 25.
There is no MX record or server for the domain this IP represents;
none of the computers behind the firewall would consider themselves to
be authoritative mail servers for any domain whatsoever.
Even if a connection were to somehow make it past the firewall, none
of the servers behind said firewall accept incoming mail of any sort
for any domain (they will deny any RCPT TO immediately), and they do
not allow sending of mail to any outside domains from any IP other
than 127.0.0.1.
I double checked just to be sure, and we definitely do not send any
VRFY requests under any conditions.
Given the aforementioned configuration, I am confused and somewhat
concerned about having this IP blacklisted for either backscatter or
sender callouts. Is there any way we could get more information on the
cause of the blacklisting?
Thanks very much,
-Matt
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