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Hi John Conover! I'm a UNIX administrator, spamfighter, and a virusfighter!
There is another way of defeating spam stuff, particularly where the
return address is bogus-which is the case in many spams-and that is to
add something in ~/.procmailrc that strips the domain name from email,
and does a ping(1), or nslookup(1) to verify that the domain exists,
and if it doesn't, put it in the /dev/null folder.
Do a nslookup on my ISP, ot.com. I guarantee it will FAIL.
Of course, it
requires a ppp/slip/tcp connection to the Internet.
No it doesn't, put it on your ISP's mailserver.
A hack on the
sources to ping or nslookup may be in order to only return an error
code if the domain name does not exist. If I am not mistaken,
sendmail.cf does this, but if it the domain name does not exist, it
delivers it, anyhow.
Use the 'host' command instead. I returns error codes prperlly.
Regards,
<Doug Muth> ----- <http://www.ot.com/~dmuth> ---- Est sularus oth Mithas!
Co-author of the SPAM-L FAQ -=-=-= http://www.snowpoint.com/spam-lfaq.txt
Anti-virus software and utils -=-=-=-=-=-= http://www.ot.com/~dmuth/virus
Because the only GOOD spammer is a DEAD spammer! || http://spam.abuse.net
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