/
\b"{0,1}[A-Z0-9_][A-Z0-9._%+-]*[A-Z0-9_]\@(?![. \-])(([A-Z0-9-]+\.)+[A-Z]{2,8}|\[{0,1}(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\]{0,1})\b
/
gi