Step - 1 : There are many of email services available, but for this example we’re going use the mailgun service by Rackspace in a NativeScript application. Create a account in Mailgun. If created, you have to keep two important things as mentioned below, Have a look at api keys section in dashboard Private api key (Like - **********6c3e6) Domain name under domain section Once you get the private api key then need to encode it into Base64 string. You may encode internally in app otherwise use the base64encode . Before encode api key, You have to add word api, So " api:actual api key " api:key-0375e*******************************e6 Step - 2 : Create the new Nativescript with Angular app. Once created add the http module in @ngModule imports section in app.module.ts inorder to access http calls methods, app.module.ts import { NativeScriptHttpModule } from "nativescript-angular/http"; ... @NgModule({ imports: [ NativeScriptHttpModule ] ...