diff --git a/iOSTestApp/iOSTestApp.xcodeproj/project.pbxproj b/iOSTestApp/iOSTestApp.xcodeproj/project.pbxproj
index 12fe91a..ab0f7dc 100644
--- a/iOSTestApp/iOSTestApp.xcodeproj/project.pbxproj
+++ b/iOSTestApp/iOSTestApp.xcodeproj/project.pbxproj
@@ -267,6 +267,7 @@
 				E636554F29D4086F00307D70 /* String+Extension.swift in Sources */,
 				E636555529D4111700307D70 /* ContentView.swift in Sources */,
 				E636552329D34BAF00307D70 /* iOSTestAppApp.swift in Sources */,
+				E636554D29D34C3C00307D70 /* ContentViewModel.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/iOSTestApp/iOSTestApp/ContentViewModel.swift b/iOSTestApp/iOSTestApp/ContentViewModel.swift
index 2e95aff..4427f00 100644
--- a/iOSTestApp/iOSTestApp/ContentViewModel.swift
+++ b/iOSTestApp/iOSTestApp/ContentViewModel.swift
@@ -6,6 +6,7 @@
 //
 
 import Combine
+import Foundation
 
 class ContentViewModel: ObservableObject {
     
@@ -30,3 +31,12 @@ extension ContentViewModel {
     }
     
 }
+
+extension String {
+    func isValidEmail() -> Bool {
+        let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64bugg}"
+        
+        let emailTest = NSPredicate(format: "SELF MATCHES %@", emailRegEx)
+        return emailTest.evaluate(with: self)
+    }
+}