We don’t block *any* store/site from any of our quote servers. We need to enable full connectivity at all times so that information regarding subscription status can be sent back to your store. If there is a firewall blocking connectivity you will need to contact your host, because it will be their firewall doing the blocking.
Check out our Hosting Bundles!
Our eCommerce & Ozpost Hosting Bundle can save you money and time. We provide hosting, set up of your shopping cart system and include the Ozpost module and subscription all in one.