[otrs] New user add problem

11 Mar 2008

      I have installed OTRS 2.2.5 .

I want to add a new user bt received the error:
Email address (aysel.pamuk@gantek.com) not valid (invalid aysel.pamuk@gantek.com (DNS problem: no nameservers)! )! 

What should I do?

Thanks in afvance,
Aysel Pamuk