[Mailscanner] SpamCop IP's

[Matt]

> While it may seem attractive, it's not a good idea to check all of the
> hops that a message takes, especially if you use MAPS-DUL or MAPS-RBL+.

MAPS-DUL should not be used on all the hops.

> Doing so will cause legitimate email to be rejected. As an example I
> happen to use an ADSL provider that is a good net citizen and they list
> the IP's of all of their non-commercial customers in the dial-up list at
> MAPS. I also happen to run my own mail server and to avoid running afoul
> of the MAPS list I relay all outbound mail through a mail server that
> isn't on the list. If a recipient were to check all of the hops I, and

And if your Mailserver does not get listed on any other lists the only issue
is the DUL list.  I just do not like the idea of a SPAMMER hiding behind
there ISP's mailserver.  Sure, the ISP should/will shut them down but in the
mean time we must tolerate there SPAM.  If there IP is assocated with ton's
of SPAM and relatively little legitimate email it will be black listed
without shuting down the ISP's server.

All I know is I want the spam to stop/slow and one of the IP's in this last
SPAM was listed in bl.spamcop.net.  Since it was not the last IP hop the
message was not tagged.  Spamcop does not block the DUL list either.

The downfall I see is the delay it would take to scan all IP's in the chain.
SPAMcop currently does this on there accounts.  But why wouldn't they, they
have the list right there.

Matt


> others like me, would have their mail blocked, even though I'm doing all
> of the right things and for all of the right reasons.
>
> It does make sense to check the first relaying MTA that isn't one of
> your designated relays, like when you have a mail relay outside of a
> firewall or when you have an upstream provider that relays all of your
> mail. I use a modified MailScanner that does exactly that. It knows the
> IP's of my relay systems, which will always the the last hop before the
> MailScanner system, and skips those causing the ip of the hop before the
> relay servers to be checked.
> --
> The instructions said to use Windows 98 or better, so I installed
> RedHat.
>
>