public Collection<String> getValidatedDomains() {
        return Collections.unmodifiableCollection(validatedDomains);
    }
Returns a collection with all the domains, subdomains and virtual hosts that where
validated. The remote server is allowed to send packets from any of these domains,
subdomains and virtual hosts.

@return domains, subdomains and virtual hosts that where validated.
xmppserver/src/main/java/org/jivesoftware/openfire/session/LocalIncomingServerSession.java