#	administrative stuff to do before messing about

#########################################
# 	backup smallish files only
#	saves individual files since "backup" is a directory
:0 c
* < 18000
backup

#	then clean out all but the N most recent backups
:0 ic
| cd backup && rm -f dummy `ls -t msg.* | sed -e 1,500d`


###########################################
#	kill dupes 
#	build a database of msgid values
:0Whc:msgid.lock
| formail -D 8192 backup/msgid.cache


#	this only works if the above one does, too.
# 	ie, if the ID was already in the cache, treat the message as a dupe
#	not so useful, but interesting
:0a:dupes.lock 
IN.duplicates