I am looking for a little help on this one...
Company A runs Zimbra, loves it.
Company B (who nows owns company A) runs Exchange.
They already have GAL searching, though it isn't live search on the exchange server side for some reason, they do weekly imports. Is there any way for members at company B to have access to free busy information for employees at Company A? It would need to be done server side and not at the individual desktops at company B.