Need to sync Exchange attributes(Exch 2010 in forest A) from forest A to another forest B (No Exch in forest B)

Hello Guys,

We have User AD accounts associated Exchange 2010 Mailboxes in forest A , We need to sync the Exchange attributes from Forest A to Forest B where there is no Exchange installed in Forest B. We need to know possible ways in quest to sync the Exchange attributes in the mentioned scenario.

Thx,

Vignesh