550 Client host rejected: cannot find your hostname

Hello Everybody,

i got the following error : 550 Client host rejected: cannot find your hostname by sending a mail to a kind of external email adresses.

Any ideas?

Thanks.

Greets

Markus

Subject: 550 Client host rejected: cannot find your hostname

stab: no reverse DNS

Subject: RE: 550 Client host rejected: cannot find your hostname

Hi,

thanks for your answer.

The problem is fixed