I’m not the final authority but I don’t think it’s (easily) possible without something managing the multiple AD’s (like another AD or LDAP-server collecting data from all the others and then serving this data to Openfire).
I don’t think Openfire can access multiple AD’s unless you like to rewrite the code.
Thats just my 2cents…I might be totally wrong, I’m not very sophisticated when it comes to LDAP/AD
Oh wait…I didn’t read correctly…so forget it. Still it should be possible to have some domain mirroring important bits from the other domains, so Openfire has to connect only to one? Just in case it cannot access multiple domains on one server…I’ve never tried…I’m fine with one domain. Enough trouble already