Domain Mapping — Domain name is unavailable to access


I'm aware that this issue seems to be raised in quite a lot of forum posts, but I can't seem to get past it.

I'm trying to map to one of my sites, but it seems to fail each time (see attached).

The domain is pointed to the correct server IP address (, and it goes to the correct site.

Is there a reason you can see why this still wouldn't be working?