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External Data Source

Source

Regular Expression
^ *(([\.\-\+\w]{2,}[a-z0-9])@([\.\-\w]+[a-z0-9])\.([a-z]{2,3})) *(; *(([\.\-\+\w]{2,}[a-z0-9])@([\.\-\w]+[a-z0-9])\.([a-z]{2,3})) *)* *$