Re: maps; teergrubbing; discussion please?

[Technical Support, Stalker Labs]

Hello,

On Tue, May 29, 2001, 14:46:17 GMT
  Stefan Jeglinski, <[EMAIL PROTECTED]> wrote:

>I ran across these links. Wondering what comments can be offered (Bill?)
>
><http://homepages.tesco.net./~J.deBoynePollard/FGA/maps-dul-is-wrong.html>
>
><http://homepages.tesco.net./~J.deBoynePollard/FGA/maps-relay-test-is-
>wrong.html>
>
>Another link from the first one above regards "teergrubbing." Is this
>a possibility for SIMS to implement?

Too some extent SIMS already implements that - it suspends an SMTP session if there 
were too many bad RCPT TO passed.

>Does it make sense for SIMS?

Personally, I believe it's better to reject connection altogether rather than start 
playing games with a spammer.

>Superficially anyway, it seems to dovetail nicely with the anti-DUL
>sentiment, but maybe it's misdirected in its conclusions?

There are several flaws in his logic. SPAM is a big problem. SPAM sources working off 
fixed IPs are weel known and blocked long ago with RBL or static black lists. SPAMming 
off a dynamic dial-up address is not very effective unless an open relay server is 
used (which are blocked also). Dial-up providers have means to pinpoint and punish a 
spammer working off an address from their dial-up pool. Administrators of remote SMTP 
servers (victims) do not have such means. So, dial-up SMTP senders should send through 
their ISP SMTP server, to simplify detection of any misuse of the provided services. 
With the DUL RBL we can force dial-up users to send through their ISPs.

><http://www.iks-jena.de./mitarb/lutz/usenet/teergrube.en.html>
>
>
>Stefan Jeglinski
>
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Sincerely,
Stalker Technical Support

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