either disable the mx record check in otrs or ensure, your otrs server is able to resolve the domains (correct configured /etc/resolve.conf assumed you're on Unix) regards, Bruce -----Original Message----- From: otrs-bounces@otrs.org [mailto:otrs-bounces@otrs.org] On Behalf Of Aysel Pamuk Sent: Tuesday, March 11, 2008 11:06 AM To: otrs@otrs.org Subject: [otrs] New user add problem 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