Type email doesn't seem to work

[jonathan-s]

Uncaught exception 'JsonSchema\Exception\InvalidArgumentException' with message 'aoasundqvist.jonathangmail.com is an invalid type for email' in /var/www/site-honshuu/vendor/justinrainbow/json-schema/src/JsonSchema/Constraints/TypeConstraint.php:139"
[15-Dec-2015 18:42:20] WARNING: [pool sdcom] child 4487 said into stderr: "Stack trace:"
[15-Dec-2015 18:42:20] WARNING: [pool sdcom] child 4487 said into stderr: "#0 /var/www/site-honshuu/vendor/justinrainbow/json-schema/src/JsonSchema/Constraints/TypeConstraint.php(73): JsonSchema\Constraints\TypeConstraint->validateType('aoasundqvist.jo...', 'email')"

schema in question uses "emailAdress": {"type": "email"}