Validating email address

Please try again in a few minutes: if the problem persists, then the domain for the email address can't accept email messages. This is not an indicator that the mailbox actually exists (or does not) but, often, a message sent by external mail exchangers with greylisting enabled.

To complete the validation of the address you should re-process the verification within a small delay of time (usually 5-10 minutes), until the server answers with a different message.

Verifalia comes with a real-time RESTful HTTPS-based API, allowing software developers to easily integrate their own applications with our email validation service.

For other browsers and backup, you can still validate email addresses using PHP, for example.

This method validates that e-mail addresses have the form "[email protected]".

Use this code to validate the string before trying to use it as an e-mail address.

NET, Java, Ruby, PHP and Node.js, which make integrating with us a breeze.

There's only one real answer to this: a valid email address is one that you can send emails to.

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^ #start of the line [_A-Za-z0-9-\\ ] # must start with string in the bracket [ ], must contains one or more ( ) ( # start of group #1 \\.[_A-Za-z0-9-] # follow by a dot "." and string in the bracket [ ], must contains one or more ( ) )* # end of group #1, this group is optional (*) @ # must contains a "@" symbol [A-Za-z0-9-] # follow by string in the bracket [ ], must contains one or more ( ) ( # start of group #2 - first level TLD checking \\.[A-Za-z0-9] # follow by a dot "." and string in the bracket [ ], must contains one or more ( ) )* # end of group #2, this group is optional (*) ( # start of group #3 - second level TLD checking \\.[A-Za-z] # follow by a dot "." and string in the bracket [ ], with minimum length of 2 ) # end of group #3 $ #end of the line The combination means, email address must start with “_A-Za-z0-9-\\ ” , optional follow by “.[_A-Za-z0-9-]”, and end with a “@” symbol. Email is valid : [email protected], true Email is valid : [email protected], true Email is valid : [email protected], true Email is valid : [email protected], true Email is valid : [email protected], true Email is valid : [email protected] , true Email is valid : [email protected], true Email is valid : [email protected] , true Email is valid : mkyong [email protected], true Email is valid : [email protected], true Email is valid : mkyong , false Email is valid : [email protected] , false Email is valid : [email protected] , false Email is valid : [email protected], false Email is valid : [email protected] , false Email is valid : [email protected], false Email is valid : mkyong()*@, false Email is valid : [email protected]%*, false Email is valid : [email protected], false Email is valid : [email protected], false Email is valid : [email protected]@, false Email is valid : [email protected] , false PASSED: Valid Email Test([

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