Nice, Im looking into my code to see why that would fail validations, one of my libraries does email validating against lengthy lists of what are called "RFC"s which are the rules for internet standards published by internet governance committees out there in the world. Maybe the format breaks some kind of rule. I can code to fix it and allow it, since my email addresses merely exist to plug a hole for now in case they ever become relevant for non-chain accounts to login with or we decided to use them for things like notifications if the user wants to volunteer an address for such things.