I'd be interested in contributing to this effort; which WG is the discussion on. Having a reference implementation in C or a C-compatible language interests me because it makes it easy and straightforward to create libraries for popular programming languages that can be tested against the reference code as well as see if it can be mainlined into languages that have standard email validation stuff like PHP and Python. Michael On Sun, Dec 9, 2018 at 6:09 PM John Levine <john.levine@standcore.com> wrote:
A standard library that has a function like validateEmail() eases the support for IEA in web and mobile apps development.
We've been working on this in the IETF. See
https://datatracker.ietf.org/doc/draft-seantek-mail-regexen/
Also keep in mind that addresses have to be syntaxtically valid, but just because the syntax is valid doesn't mean the address actually works. The only way to check is to send it a message and see if anyone responds.
R's, John