Using DKIM to send mail with Thelia2 ( core/lib/Thelia/Mailer/MailerFactory.php )

MailerFactory.php.diff

diff --git i/core/lib/Thelia/Mailer/MailerFactory.php w/core/lib/Thelia/Mailer/MailerFactory.php
index a59ad40..7808a79 100644
--- i/core/lib/Thelia/Mailer/MailerFactory.php
+++ w/core/lib/Thelia/Mailer/MailerFactory.php
@@ -30,6 +30,12 @@ use Thelia\Model\MessageQuery;
  */
 class MailerFactory
 {
+    // {{{ added by @asenar - DKIM patch
+    // HOWTO
+    // 1) install opendkim opendkim-tools
+    // follow instruction on this tutorial https://blog.hbis.fr/2012/11/16/opendkim-multiple_domains/
+    // 2) copy the private key in your ./local directory (/var/www/boutique/local/mail.default.private)
+    // 3) replace the full path and the domain name by the correct value here
+    private $useDkim = true;
+    private $dkimPrivateKeyPath = '/var/www/boutique/local/mail.default.private';
+    private $dkimDomainName     = 'example.tld';
+    private $dkimSelector      = 'default';
+    // }}} added by @asenar - DKIM patch
     /**
      * @var \Swift_Mailer
      */
@@ -215,7 +221,30 @@ class MailerFactory
 
             $this->parser->assign('locale', $locale);
 
-            $instance = \Swift_Message::newInstance();
+            // {{{ added by @asenar - DKIM patch
+            $instance = null;
+            if ($this->useDkim) {
+                try {
+                    $privateKey = file_get_contents($this->dkimPrivateKeyPath);
+                    $domainName = $this->dkimDomainName;
+                    $selector   = $this->dkimSelector;
+                    $signer = new \Swift_Signers_DKIMSigner($privatekey, $domainName, $selector);
+
+                    $instance = \Swift_SignedMessage::newInstance();
+                    $instance->attachSigner($signer);
+                }
+                catch(Exception $e) {
+                    // raise exception if dev mode only ?
+                    //$instance = \Swift_Message::newInstance();
+                    $instance = null;
+                }
+            } 
+            if (!$instance) {
+                $instance = \Swift_Message::newInstance();
+            }
+            // This was
+            // $instance = \Swift_Message::newInstance(); 
+            // }}} added by @asenar - DKIM patch
 
             // Add from addresses
             foreach ($from as $address => $name) {