Indexing email messages

I have a maildir which currrently has (and growing) 187851 messages in
it as reported by ls |wc -l

Right now I have about a 180 message ids I need to find in there, but
I do know most of them are recent:

for i in `cat ~/message.ids.clean`;do echo START;echo $i; find -ctime
-90 -exec grep -l $i {} \;;echo END;done > ~/results

This is a very slow way to go about this. Even if I did parallelize
it, hoping the disk cache would make it faster, that still wouldn't
help much. Can someone think of an obviously faster bash script?

Are there any tools to index the files for me? Or maybe I could parse
out the interesting bits (message id, date, recipients, etc) and put
them in a database.
Received on Mon Sep 10 12:18:23 2007