Thanks! It's just a simple HTML snippet that gets inserted into their emails. The snippet contains an image that we change on the server side. It's gets a lot m

Thanks! It's just a simple HTML snippet that gets inserted into their emails. The snippet contains an image that we change on the server side. It's gets a lot more complicated than that, but that's the basic premise. I'd love to chat more some time - feel free email me at dan@airtimehq.com if you're interested!