#!/bin/sh

# First, eliminate duplicates with formail (part of procmail).
if formail -D 65536 "$HOME"/.msgid.cache
then 
  echo duplicate chucked
  exit 99
fi

# Return to the start of the message.
rewind

# Check for undesireables in the "from" field. Use DJ Bernstein's
# mess822 package and also his CDB package.
if cdbget "`822field from`" < ~/.badmailfrom.cdb
then
  echo killfiled
  exit 99
fi

# Return to the start of the message.
rewind

case "$EXT" in
  lists-*)
    # File the message. It is addressed to budney-lists-listname; so
    # $EXT2 is equal to listname. Use that as the foldername, but
    # reject emails when the folder does not exist.
    if [ -d "$HOME"/Mail/lists/"$EXT2" ]
    then
        if /usr/lib/nmh/rcvstore -nocreate +lists/"$EXT2"; then
	    echo "$EXT2"
	else
	    exit 111
	fi
    else
	exit 100
    fi
    ;;
  *)
    # Default delivery rule.
    /usr/lib/nmh/rcvstore +inbox && echo inbox
esac

# Return to the start of the message.
rewind

# Biff me!
/usr/bin/qbiff