public OutgoingServerSession getOutgoingServerSession(DomainPair pair) {
        return routingTable.getServerRoute(pair);
    }
Returns a session that was originated from this server to a remote server.
OutgoingServerSession an only send packets to the remote server but are not capable of
receiving packets from the remote server.

@param pair DomainPair describing the local and remote servers.
@return a session that was originated from this server to a remote server.
xmppserver/src/main/java/org/jivesoftware/openfire/SessionManager.java