[Courier-imap] ldap & multiple domains

[Mike S. <st...@pa...>]

I am trying to setup courier-imap on a server for multiple domains
authenticating out of LDAP.. The thing is, they must be looked up under
multiple root DNs.

EX:
------------------------------------------------------------------------
ou=People,dc=domain,dc=com
	dn: uid=username,ou=People,dc=domain,dc=com
		uid: username

ou=virtualDomains,dc=domain,dc=com
	dn: mail=use...@vi...,ou=virtualDomains,dc=domain,dc=com
		mail: use...@vi...
		uid: username
		associatedDomain: virtdomain.com

ou=People,dc=otherdomain,dc=com
	dn: uid=username,ou=People,dc=otherdomain,dc=com
		uid: username
------------------------------------------------------------------------

What is the best way to go about doing this without having multiple
instances of courier-imap / authdaemon running?

Thanks,

-Mike