[SR-Users] "Locating SIP-Servers" problem

Dear all, I have a problem to verify the correct RFC 3263 behavior of Kamailio SIP Server v4.1. I have a basic configuration of two SIP servers one domains "net1.test" and the other for domain "net2.test". When I now setup a session between both domains (from sip:alice@net1.test to sip:bob@net2.test) I expect a NAPTR-, SRV- and A-query before forwarding the INVITE to the (inbound) proxy server of net2.test. But I instead get an error: 0(3994) ERROR: <core> [resolve.c:1733]: sip_hostport2su(): ERROR: sip_hostport2su: could not resolve hostname: "net2.test" The trace-protocol shows only two A-queries - A-query for net2.test - A-query for net2.test.net1.test Why do I not get the NAPTR- and SRV-queries? BR Franz