[Exim] How to write nested lookups?

I am trying to set up an exim director
to handle ldap mail groups. My ldap
query will return a list of dn's but
now I need to look up those dn's and
get the corresponding mail addresses.

How do I do a nested lookup to translate
each of those dn's to addresses?

-L

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*--* Mail: lawrence@???
*--* Voice: 425.739.4247
*--* Fax: 425.827.9577
*--* HTTP://www.otak-k.com/~lawrence/
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