Approving your entire domain

How does LuxSci approve my entire domain to be used as ‘Permitted From Addresses’?

Under 'My Profile > Permitted From Addresses' there is a section to 'Add All Addresses in a Domain' where we supply a unique A record (in the form of "") pointing to the IP address of your High Volume server. You must you must add that A record to your domain's DNS settings before you attempt to enter your domain into the field provided. When you enter your domain into the field, our system queries your domain's name servers directly to check if that A record is being published, and if so then LuxSci Support Staff are alerted, will validate the request, and approve as appropriate. If the A record is not published when you try to submit your domain, you will be unable to submit it for approval.