At 16:44 1/24/2002, you wrote:

Ok... perhaps I don't understand strace well enough, but I can't see where to start to look for the problem. Here's my strace of basically the same outlines session below:

-=-=-=-=-=-=-=-=-= [pid 31000] close(4) = 0 [pid 31000] munmap(0x40019000, 4096 <unfinished ...> [pid 30990] <... read resumed> "\n", 4096) = 1 [pid 31000] <... munmap resumed> ) = 0 [pid 30990] fstat64(1, <unfinished ...> [pid 31000] _exit(1) = ? <... fstat64 resumed> {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0 --- SIGCHLD (Child exited) --- mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000 write(1, "250 Ok.\r\n", 9) = 9 time([1011920398]) = 1011920398 time([1011920398]) = 1011920398 -=-=-=-=-=--=-=-=-=-=-=-=-=-=- You can see above that the MAIL FROM command was fine and responds with an OK and the child process exits normally. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- select(1, [0], NULL, NULL, {600, 0}) = 1 (in [0], left {566, 480000}) read(0, "RCPT TO:<te...@cm.pcslab.com>\r\n", 5120) = 30 write(5, "te...@cm.pcslab.com\t\t\n", 21) = -1 EPIPE (Broken pipe) --- SIGPIPE (Broken pipe) --- write(1, "432 Service temporarily unavaila"..., 38) = 38 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 nanosleep({8, 0}, {8, 0}) = 0 time([1011920440]) = 1011920440 time([1011920440]) = 1011920440 select(1, [0], NULL, NULL, {600, 0} -=-=-=-=-=-=-=-=-=-=-=-=-=-

As you can see here, it immediately dies with a broken pipe... I really have no idea what it's trying to do here. Is it trying to call a function that doesn't work/exist? What's going on?