Prevent Spammer to Register Using The Same Gmail Email (Duplicate User Accounts)

Gmail,  Gmail is …, ah I really don’t need to explain this. So, continue reading The Facts Gmail ignores . (dot) in username If you have Gmail account example@gmail.com, actually you also have ex.ample@gmail.com, exam.ple@gmail.com, and so on until all characters in the username are separated with dot. These all have same inbox, and you can [...]