Ruby Email validation with regex

Question

I have a large list of emails I am running through. A lot of the emails have typos. I am trying to build a string that will check valid emails.

this is what I have

Answer 1

I guess the example from the book can be improved to match emails with - in subdomain.

VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-]+(\.[a-z\d\-]+)*\.[a-z]+\z/i

For example:

> 'some@email.with-subdomain.com' =~ VALID_EMAIL_REGEX
=> 0