Can not Reverse DNS
How can I solve the problem? Thanks
If you had just set up your domain/address records, it's probably not yet resolvable, and you must wait for DNS to make its way across the internet.
If you get a DNS page error in Plesk, here's a guide to help you -
The problem has solved. The thing is after I setting the "DNS manager", I can not did the "Reverse DNS" at that time. It similar need afew hours to renew something. I do it at this morning, everything shows fine.