On Thu, 2010-12-09 at 14:43 -0800, John Hardin wrote: > > It appears that a client can easily set up hosting using cPanel or > > something without ever setting the rDNS or hostname to anything other > > than the numeric default. > > Is there anything in the headers that indicates cpanel is in use? Perhaps > a meta on cpanel
Proof a mail system has been set up and is being maintained by clicking through a simple UI system. Strong hint the operator doesn't know much about such systems, and likely not about properly securing auth either. > + dynamic-looking-rDNS would be worth a negative point or two... Plus proof the operator indeed doesn't know, or doesn't care. You think that's worth a negative score? -- char *t="\10pse\0r\0dtu...@ghno\x4e\xc8\x79\xf4\xab\x51\x8a\x10\xf4\xf4\xc4"; main(){ char h,m=h=*t++,*x=t+2*h,c,i,l=*x,s=0; for (i=0;i<l;i++){ i%8? c<<=1: (c=*++x); c&128 && (s+=h); if (!(h>>=1)||!t[s+h]){ putchar(t[s]);h=m;s=0; }}}