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External Data Source

Source

Regular Expression
(([^<>()\\[\\]\\\\.,;:\\s@"]+(\\.[^<>()\\[\\]\\\\.,;:\\s@"]+)*)|(".+"))@((\\[{0,1}([0-9]{1,3}\\.){3}[0-9]{1,3}]{0,1})|(([a-zA-Z0-9][a-zA-Z\\-0-9]*[a-zA-Z0-9]\\.)+[a-zA-Z]{2,}))$