Filter to Ban E-mail Addresses from
By David Efflandt
Banning e-mail addresses to fight
spam or worms is not very effective because spammers use most any fake
e-mail address (if they have an ounce, or is that milligram, of brains),
and worms often pick random From addresses from the victim's Outlook
address book. But somebody requested this, so here it is.
It can be run as an external procmail filter. It does not actually drop
the mail, but adds an X-Drop header based on a match in any From or
Sender header, that can easily be used in following recipe or other
filter to drop it in the bit bucket. Note that any name or address in
the list, so if you just put a domain in the list, it would flag any
mail from that domain.
Script source Banatest
based on IP file list of abusive spam sources or relays may be more