[exim] splitting mails

I use exim as out MTA. I've recently started 'playing' with per user sql
configs in spamassassin. I have it working for a few select users,
however it really isn't useful if it can only scan messages with only
one recipient.
Is there any trick in the book that I could use to take all multiple
recipient messages and resubmit them as multiple single recipient
messages at the MTA level?

thanks

R
--
Regards

Ronan McGlue

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Analyst / Programmer
Queens University Belfast