JSFiddle - React, Tailwind, and code Playground

JavaScript

var to = 'WDW\AthaD81*Atha, Dustin M*[email protected]*92019975|WDW\DRAHJ003*Drahl, Justin M. -ND*[email protected]*00646172',
    obj = [],
    parts = to.split("|");


for (var i = 0; i < parts.length; i++) {	
	var to1 = parts[i],
    obj1 = [],
    parts1 = to.split("*");
	for (var j = 0; j < parts1.length; i++) {
  	console.log(parts1[j]);
  }
    //obj.push({email:parts[i]},{email1:parts[i]},{email2:parts[i]},{email3:parts[i]});    
}

//Logging
for (var i = 0; i < obj.length; i++) {
    console.log(obj[i]);
}