Regex Email validation in c# dot net core

 Use this regex /^_?[a-zA-Z0-9]([a-zA-Z0-9]*[._+-])*[a-zA-Z0-9_]+@(?!-)[A-Za-z0-9-]{1,63}(?<!-)(\.(?!-)[A-Za-z0-9-]{1,63}(?<!-))*\.[A-...