[linux] postfix a > 550 5.7.1 Client host > > rejected: cannot find your hostname

[tester tester]

Hi all,

mam otazku, mam server debian na nom postfix. v poslednej dobe sa mi zacinaju objavovat nedorucene maily, ktore maju ciel vo volny.cz  sprava je :
> <xxxxxx na volny.cz>: host mx.volny.cz[212.20.96.180] said: 550 5.7.1 Client
host
> >     rejected: cannot find your hostname, [<MOJA_IP>] (in reply to
RCPT TO
> >     command)
> >

vie mi niekto poradit ako tento problem fixnut?dik

t.