Embed Notice

@youronlyone @silsinn9821 You are correct. Even *@example.com is valid.

"The userpart consists only of Unicode code points that conform to the PRECIS IdentifierClass specified in [RFC7564]."

"Code points in the range U+0021 through U+007E, i.e., the (printable) ASCII7 ("K") category defined under Section 9.11. These code points are "grandfathered" into PRECIS and thus are valid even if they would otherwise be disallowed according to the property-based rules specified in the next section."