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                    | Title | Test
                        Details
                        
                        
                            Pattern Title | 
                
                    | Expression | 
                            ^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$
                         | 
                
                    | Description | Email validator that adheres directly to the specification for email address naming. It allows for everything from ipaddress and country-code domains, to very rare characters in the username. | 
                
                    | Matches |  | 
                
                    | Non-Matches | joe | @foo.com | a@a | 
                
                    | Author | Rating:  Andy Smith | 
            
        
    
        
        
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