3 ms·

You should know there is a standard regular expression for validating email addresses mentioned in an RFC.

• 90s_dev 1y ago
  I'm sure there is. And I'm sure many email servers deviate from it.
• Xss3 1y ago
  The real validation is the link in the confirmation email. Tbh though ideally you would use the most restrictive validation that exists in the mail server. If mail server accepts '@tld' you do too.