The value of regex-validating emails and urls are limited. Validation is mostly useful for flagging completely malformed input, like people writing "asdf" or "I

The value of regex-validating emails and urls are limited. Validation is mostly useful for flagging completely malformed input, like people writing "asdf" or "I dont have an email, plz use fed-ex.". Regex validation will not catch common typos (or made-up emails) because they tend to look like correct emails. So the intricate, syntactically correct email validation regexes are a solution in search of a problem. If you really want to be sure that the email is correct, you have to send a confirmation mail. For your input validation, just check that there is a "@" somewhere.