Validating email address in java
Body = email Header "\n" email Body; //send the message Smtp Client smtp = new Smtp Client(Server Address); smtp. So when I try to send an email using this code, I get the exception: "The specified string is not in the form required for an e-mail address." Is there any way to validate the comma delimited email addresses?
Now the problem is that, in case of multiple comma delimited addresses, one or two of them might be of the wrong email address format. String email = "[email protected];foo#bar.com"; String expression = @"\w ([- .']\w )*@\w ([-.]\w )*\.\w ([-.]\w )*"; Regex regex = new Regex(expression); String emails = email.
The following is the basics of the code that will verify that the domain actually exists: There is a lot more you can do, actually trying to connect for example, to verify that the domain will receive the mail.
all we can do is to vefy the pattern, or more you vefy the mail domain such as SMTP do has a command 'VEFY' but almost all smtp server doesn't implement this command for security reason. With the vast amount of complex, but valid email addresses that exist today, the only way to truly tell if an email address is valid is to send the email and see if it bounces.With that said, there are a few things we can do on the front end to make the experience better for everyone.With that said, we’ll start off with the most permissive solution and work our way towards the other end. That’s typically all I ever assume about an email address.If the email the user types in doesn’t follow that structure, odds are they made a typo.