Another trick is to drop messages based on header content. I don't
speak Korean and have no way to verify that any message sent to me
in Korean would be legitimate.
# Reject mail with non-ASCII text (byte values > 127) in the Subject:
# or From: headers.
headers '^(subject|from)\s*:.*[^\x00-\x7f]{5,}' drop
# Reject mail with asian character sets.
headers 'charset=.*(?:ks_c_|euc-kr)' drop
It's only caught 25 spams since 08/25/02 (the start of incoming log),
so it's not all that prevalent for me, but it doesn't hurt.
I haven't had a spammer auto-confirm his spam, but if I did, his whole
domain would go onto my blacklist.
-jon
--
Jon Nathan
[EMAIL PROTECTED]
* Troy Frericks <[EMAIL PROTECTED]> [12-07-2002 21:38]:
>
> I got one of those once. I simply blacklisted that whole domain. Haven't
> received another since. It's so rare that I'm not willing spend any time
> worrying about it.
>
> Troy.
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