Hi, perhaps I missing something but AFAIK if I do: rewritehostport("kk.kkkkkkkkkkaaa.bad"); append_branch(); xlog("L_INFO", "1111111111\n"); if (!t_relay()) { xlog("L_ERROR","222222222222\n"); } xlog("L_ERROR","3333333333\n"); Then, since "kk.kkkkkkkkkkaaa.bad" is a non existing domain I expect to see "222222222" because t_relay should reply a negative value: -4 bad destination (unresolvable address) But the fact is that I don't see that "2222222222", neither "3333333333" but this error: ---------- May 29 10:38:32 [16795] CRITICAL:core:mk_proxy: could not resolve hostname: "kk.kkkkkkkkkkaaa.bad" May 29 10:38:32 [16795] ERROR:tm:uri2proxy: bad host name in URI <sip:number_doesnt_exist@kk.kkkkkkkkkkaaa.new;transport=UDP;user=phone> May 29 10:38:32 [16795] ERROR:tm:t_forward_nonack: failure to add branches ----------- Why? Thanks a lot. -- Iñaki Baz Castillo ibc(a)in.ilimit.es