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Email validation (regex + VB.NET)

Private Shared Function IsValidEmailAddress(ByVal email As String) As Boolean

 

‘ This regex pattern came from: http://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx

Dim pattern As String = “^(?!\.)(“”([^””\r\\]|\\[“”\r\\])*””|([-a-z0-9!#$%&’*+/=?^_`{|}~]|(?<!\.)\.)*)(?<!\.)@[a-z0-9][\w\.-]*[a-z0-9]\.[a-z][a-z\.]*[a-z]$” 

Return Regex.IsMatch(email, pattern, RegexOptions.IgnoreCase)

 End Function

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