So I was stuck trying to send email with ionic. I tried many tutorials, examples but nothing worked except this one: https://www.thepolyglotdeveloper.com/2014/08/send-email-android-ios-ionicframework/.

I'm leaving this tutorial here. Please see below for the answer.

Very Easy

1. Go to your app root directory
2. Install Email Composer with Attachments Plugin type: cordova plugin add https://github.com/jcjee/email-composer.git, link for repo
3. Re-build project for your desired platform for example for android: ionic build android

4. Now prepare your AngularJS controller:

   angular.module('myApp').controller('WhatToDoController', function ($scope, $state) {
   
   var whatToDo = this;
   
   /**
    * Sends an email using Email composer with attachments plugin and using
    * parameter email.
    *
    * @param email
    */
   whatToDo.sendEmail = function (email) {
     if (window.plugins && window.plugins.emailComposer) { //check if plugin exists
   
       window.plugins.emailComposer.showEmailComposerWithCallback(function (result) {
           //console.log("Email sent successfully");
         },
   
         null,        // Subject
         null,        // Body
         [email],     // To (Email to send)
         null,        // CC
         null,        // BCC
         false,       // isHTML
         null,        // Attachments
         null);       // Attachment Data
     }
   
   }
   });
   

5. Now in your html view you can use the method sendEmail(email):

   <p>
   Send an email to <a href="#" ng-click="whatToDo.sendEmail('example@email.com')">example@email.com</a>
   </p>
   

6. Try to use this on an actual smartphone since in the emulator if you have no configured email app it won't work properly.

If you get stuck or something try: https://www.youtube.com/watch?v=kFfNTdJXVok or https://blog.nraboy.com/2014/08/send-email-android-ios-ionicframework