sendmail 8.11.0 - relaying denied. IP name possibly forged

[Jan Satko]

> > --- kus logu ---
> > Dec 18 14:29:52 ns sendmail[19366]: eBIDTqQ19366: ruleset=check_rcpt,
> > arg1=<koudelka na mtech.cz>, relay=pc57-1.pegas-dk.cz [192.168.1.57] (may be
> > forged), reject=550 5.7.1 <koudelka na mtech.cz>... Relaying denied. IP name
> > possibly forged [192.168.1.57On Thursday 14 December 2000 15:44, you wrote:
> > --- konec logu ---

Takze sendmail zistil ze prisla posta ktora smeruje na koudelka na mtech.cz.
A pocitac od ktoreho ta posta ide o sebe tvrdi ze je pc57-1.pegas-dk.cz
ALE zaznam o nom nie je v DNS(may be forget).

Nakolko sendmail nema zaznam v access ze 192.168. moze cez neho posielat
postu resp. nema zaznam ze moze preposielat dalej postu pre @mtech.cz,
zahlasi Relaying-denied.

Regards, 
--
      Jan 'EIS' Satko        Slovak Agricultural University      
 network & system manager           Tr. A. Hlinku 2  
  Tel: +421 87 7412 616          949 01 Nitra Slovakia