I am trying to allow my son to use the Snapchat app on our home network. I have blocked several of the OpenDNS categories associated with Snapchat, so I have the domain "Snapchat.com" set to Never Block. With that domain allowed, most of the features...

I'm using OpenDNS on my home network. Several categories are blocked, including "Instant Messaging" and "Photo Sharing". I've noticed, when using the iMessage app on my iPhone, when connected to my home network, attachments such as JPEG and PDF files...