diff --git a/lib/Newsletter/Editor/PostContentManager.php b/lib/Newsletter/Editor/PostContentManager.php
index 3d35e25aeb..8169263b8d 100644
--- a/lib/Newsletter/Editor/PostContentManager.php
+++ b/lib/Newsletter/Editor/PostContentManager.php
@@ -14,11 +14,14 @@ class PostContentManager {
   /** @var WooCommerceHelper */
   private $woocommerceHelper;
 
+  /** @var WPFunctions */
+  private $wp;
+
   public function __construct(
     WooCommerceHelper $woocommerceHelper = null
   ) {
-    $wp = new WPFunctions;
-    $this->maxExcerptLength = $wp->applyFilters('mailpoet_newsletter_post_excerpt_length', $this->maxExcerptLength);
+    $this->wp = new WPFunctions;
+    $this->maxExcerptLength = $this->wp->applyFilters('mailpoet_newsletter_post_excerpt_length', $this->maxExcerptLength);
     $this->woocommerceHelper = $woocommerceHelper ?: new WooCommerceHelper();
   }
 
@@ -26,19 +29,19 @@ class PostContentManager {
     if ($displayType === 'titleOnly') {
       return '';
     }
-    if ($this->woocommerceHelper->isWooCommerceActive() && $post->post_type === 'product') { // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    if ($this->woocommerceHelper->isWooCommerceActive() && $this->wp->getPostType($post) === 'product') {
       $product = $this->woocommerceHelper->wcGetProduct($post->ID);
       if ($product) {
         return $this->getContentForProduct($product, $displayType);
       }
     }
     if ($displayType === 'excerpt') {
-      if (!empty($post->post_excerpt)) { // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
-        return self::stripShortCodes($post->post_excerpt); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+      if ($this->wp->hasExcerpt($post)) {
+        return self::stripShortCodes($this->wp->getTheExcerpt($post));
       }
-      return $this->generateExcerpt($post->post_content); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+      return $this->generateExcerpt($this->wp->getTheContent(null, false, $post));
     }
-    return self::stripShortCodes($post->post_content); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    return self::stripShortCodes($this->wp->getTheContent(null, false, $post));
   }
 
   public function filterContent($content, $displayType, $withPostClass = true) {