Hi ,

I am trying to install ZCS open source on RHEL 6 , it fails saying :

DNS ERROR resolving MX for mail.xyz.net
It is suggested that the domain name have an MX record configured in DNS
Re-Enter domain name? [Yes]

I am giving correct hostname mail.xyz.net : it still continues with same thing.
I have domain purchased and A and MX record is pointing to the server that I am installing ZCS:

I am installing on AWS EC2 instance and I have purchased domain( its is not behind NAT/Firewall).

output of zmcontrol -v:
Release 8.0.1_GA_5438.RHEL6_64_20121105164510 RHEL6_64 NETWORK edition.

I have already searched the forum and unable to get this resolved ,appreciate your help on this.