reporting via spamcop, the source will automatically be submitted for open relay
testing. If the test is successful, then the IP number is added to the open
relay database(s)
SORBS, ORDB, CBL, SPAMHAUS are some of the ones that are the most reliable and
with the fewest false positives.
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----- Original Message -----
From: "dana tierney" <[EMAIL PROTECTED]>
To: "CF-Community" <[EMAIL PROTECTED]>
Sent: Sunday, January 25, 2004 8:31 AM
Subject: Re:libero.it
: ok :) you need to check a database then? but how does it get submitted to the
databases? I followed enough of recent similar topics to remember that spamcop
is by user nomination and has a lot of false positives, but let's say a database
that you consider reliable. How does it know if an ip is an open relay?
:
: Dana
:
: > dana tierney wrote:
: > > yeah, I worked in isps long enough to know what an open relay is...
: >
: > > but how can you tell one in the headers?
: >
: > Not. You need to match them to an external database of IPs.
: >
: >
: > > Just by the fact that the
: > > mail claims to come from one server but in fact comes from another?
: >
: > Misconfigured servers are very common. In fact, any pre-MX CF server
: > will identify itself incorrectly when CFMAIL is used. And there is no
: > way to change that :-(
: >
: >
: > > I can see that this creates a presumption, but is there a reason you
: > are
: > > saying this beyond the misrepresentation + the listing? Might as
: > well
: > > learn to read these while I have y'all's attention :)
: >
: > Just check the submission policy of the database you are using to
: > verify if it is an open relay.
: >
: Jochem
:
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