Checks if the given string is a valid email address format.

• Uses the System.Net.Mail.MailAddress constructor to validate the format
• Does not check if the domain exists or if the email can actually receive messages
• Considers null or empty strings as invalid.
• Returns False if MailAddress throws a FormatException.

    Public Function IsValidEmailAddress(address As String) As Boolean
        Try
            Dim dummy = New MailAddress(address)
            Return True
        Catch
            Return False
        End Try
        
    End Function

    Public Function IsValidEmailAddress(address As String) As Boolean
        Try
            Dim dummy = New MailAddress(address)
            Return True
        Catch
            Return False
        End Try
        
    End Function