There's only one real answer to this: a valid email address is one that you can send emails to.
Validating email format php purchased playlist not updating ios 7
From cluttering up databases with invalid information, to sending newsletters or similar content to email addresses at nonexistent domains, headaches are surely going to come up from receiving fake email.
Several approaches can be taken to address the problem, depending on the level of complexity desired for the validation itself.
In this article, we’ll develop a reusable step-by-step solution to validate a user’s email address as accurately as possible, in an attempt to save some work the next time an application needs to check for email validity.
The process will show the power of some interesting PHP built-in network functions, as well as demonstrate how to reduce noticeably the possibilities of dirtying our applications with user-supplied bogus email.
Though it may be impossible to catch all of the email addresses this way, performing validation routines on the format itself can improve our overall checking process.