- Adds "reply to" option to all mailers

- Replaces WPMail with Swift using local transport (PHP mail)
- Fixes AmazonSES region naming convention
- Updates tests

lib/Mailer/Methods/PHPMail.php

@@ -0,0 +1,64 @@
+<?php
+namespace MailPoet\Mailer\Methods;
+
+if(!defined('ABSPATH')) exit;
+
+class PHPMail {
+  public $sender;
+  public $reply_to;
+  public $mailer;
+
+  function __construct($sender, $reply_to) {
+    $this->sender = $sender;
+    $this->reply_to = $reply_to;
+    $this->mailer = $this->buildMailer();
+  }
+
+  function send($newsletter, $subscriber) {
+    try {
+      $message = $this->createMessage($newsletter, $subscriber);
+      $result = $this->mailer->send($message);
+    } catch(\Exception $e) {
+      $result = false;
+    }
+    return ($result === 1);
+  }
+
+  function buildMailer() {
+    $transport = \Swift_SmtpTransport::newInstance();
+    $transport->setTimeout(10);
+    return \Swift_Mailer::newInstance($transport);
+  }
+
+  function createMessage($newsletter, $subscriber) {
+    $message = \Swift_Message::newInstance()
+      ->setTo($this->processSubscriber($subscriber))
+      ->setFrom(array(
+          $this->sender['from_email'] => $this->sender['from_name']
+        ))
+      ->setReplyTo(array(
+          $this->reply_to['reply_to_email'] =>  $this->reply_to['reply_to_name']
+        ))
+      ->setSubject($newsletter['subject']);
+    if(!empty($newsletter['body']['html'])) {
+      $message = $message->setBody($newsletter['body']['html'], 'text/html');
+    }
+    if(!empty($newsletter['body']['text'])) {
+      $message = $message->addPart($newsletter['body']['text'], 'text/plain');
+    }
+    return $message;
+  }
+
+  function processSubscriber($subscriber) {
+    preg_match('!(?P<name>.*?)\s<(?P<email>.*?)>!', $subscriber, $subscriber_data);
+    if(!isset($subscriber_data['email'])) {
+      $subscriber_data = array(
+        'email' => $subscriber,
+      );
+    }
+    return array(
+      $subscriber_data['email'] =>
+        (isset($subscriber_data['name'])) ? $subscriber_data['name'] : ''
+    );
+  }
+}