>I know that removing rcpthosts is a very very bad thing because it opens
>the door for spammers to use your server to spam, but I haven't heard HOW
>a spammer *finds* such a server to begin with. If one removes rcpthosts,
>what are the chances that anyone will find this out? How does any spammer
>get such information?
Spammers scan IP ranges looking for open relays. Since there are so
many of them (tens of thousands at last count) the chances that they'll
stumble on yours is low but definitely not zero.
If your host sends out mail, it will almost certainly be robo-probed
by some of the receipient systems. That's pretty rude, but they do it
anyway.
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John R. Levine, IECC, POB 727, Trumansburg NY 14886 +1 607 387 6869
[EMAIL PROTECTED], Village Trustee and Sewer Commissioner, http://iecc.com/johnl,
Member, Provisional board, Coalition Against Unsolicited Commercial E-mail
