code: function extract_from_line (body) {
      const matches = body.bodytext.match(/\bFrom:[^<\n]*<([^>\n]*)>/);
      if (matches) {
          return matches[1];
      }
  
      for (let i=0,l=body.children.length; i < l; i++) {
          const from = extract_from_line(body.children[i]);
          if (from) {
              return from;
          }
      }
  
      return null;
  }
docs: Example: From: 	Site Tucano Gold <contato@tucanogold.com.br>