Email address validation is the process of verifying that an email address is well-formed and exists. It’s a crucial step to ensure that emails are delivered successfully and to prevent spam and phishing attacks.
A valid email address has two main components: a local part and a domain name. The local part is the part before the “@” symbol, and the domain name is the part after the “@” symbol. For example, in the email address “username@example.com”, “username” is the local part and “example.com” is the domain name.