diff --git a/lib/Newsletter/Editor/PostTransformerContentsExtractor.php b/lib/Newsletter/Editor/PostTransformerContentsExtractor.php
index e19535714f..7921442c2f 100644
--- a/lib/Newsletter/Editor/PostTransformerContentsExtractor.php
+++ b/lib/Newsletter/Editor/PostTransformerContentsExtractor.php
@@ -133,7 +133,7 @@ class PostTransformerContentsExtractor {
   }
 
   public function getTitle($post) {
-    $title = $this->sanitizeTitle($post->post_title); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    $title = $post->post_title; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
 
     if (filter_var($this->args['titleIsLink'], FILTER_VALIDATE_BOOLEAN)) {
       $title = '<a href="' . $this->wp->getPermalink($post->ID) . '">' . $title . '</a>';
diff --git a/tests/integration/Newsletter/RendererTest.php b/tests/integration/Newsletter/RendererTest.php
index 5c3373d11c..ef8245ff72 100644
--- a/tests/integration/Newsletter/RendererTest.php
+++ b/tests/integration/Newsletter/RendererTest.php
@@ -638,4 +638,63 @@ class RendererTest extends \MailPoetTest {
     // non mso condition for button is rendered correctly
     expect(preg_match('/<\!--\[if \!mso\]><\!-- -->\s+<a class=\"mailpoet\_button\".+<\/a>\s+<\!--<\!\[endif\]-->/s', $template['html']))->equals(1);
   }
+
+  // Test case for MAILPOET-3660
+  public function testItRendersPostContentWhenMultipleQuotesInPostTitle() {
+    $postTitle = 'This \"is \'a\" test';
+    $postContent = '<!-- wp:paragraph -->\n<p>This is the post content</p>\n<!-- /wp:paragraph -->';
+    $postId = wp_insert_post(
+      [
+        'post_title' => $postTitle,
+        'post_content' => $postContent,
+        'post_status' => 'publish',
+      ]
+    );
+    $filename = 'tests/_data/600x400.jpg';
+    $contents = file_get_contents($filename);
+
+    $upload = wp_upload_bits(basename($filename), null, $contents);
+    $attachmentId = $this->makeAttachment($upload);
+    set_post_thumbnail($postId, $attachmentId);
+
+    $this->newsletter->setBody(json_decode(
+      (string)file_get_contents(dirname(__FILE__) . '/RendererTestALCdata.json'), true
+    ));
+
+    $template = $this->renderer->render($this->newsletter);
+    expect($template['html'])->stringContainsString('This is the post content');
+
+    wp_delete_attachment($attachmentId, true);
+    wp_delete_post($postId, true);
+  }
+
+  public function makeAttachment($upload, $parentPostId = 0) {
+    if ( ! function_exists( 'wp_crop_image' ) ) {
+      include( ABSPATH . 'wp-admin/includes/image.php' );
+    }
+
+    $type = '';
+    if (!empty($upload['type'])) {
+      $type = $upload['type'];
+    } else {
+      $mime = wp_check_filetype($upload['file']);
+      if ($mime)
+        $type = $mime['type'];
+    }
+
+    $attachment = [
+      'post_title' => basename($upload['file']),
+      'post_content' => '',
+      'post_type' => 'attachment',
+      'post_parent' => $parentPostId,
+      'post_mime_type' => $type,
+      'guid' => $upload['url'],
+    ];
+
+    $id = wp_insert_attachment($attachment, $upload['file'], $parentPostId);
+    $metadata = wp_generate_attachment_metadata($id, $upload['file']);
+    wp_update_attachment_metadata($id, $metadata);
+
+    return $id;
+  }
 }
diff --git a/tests/integration/Newsletter/RendererTestALCdata.json b/tests/integration/Newsletter/RendererTestALCdata.json
new file mode 100644
index 0000000000..34dfbeba4c
--- /dev/null
+++ b/tests/integration/Newsletter/RendererTestALCdata.json
@@ -0,0 +1,403 @@
+{
+  "content": {
+    "type": "container",
+    "orientation": "vertical",
+    "styles": {
+      "block": {
+        "backgroundColor": "transparent"
+      }
+    },
+    "blocks": [
+      {
+        "orientation": "horizontal",
+        "type": "container",
+        "styles": {
+          "block": {
+            "backgroundColor": "#999999"
+          }
+        },
+        "blocks": [
+          {
+            "orientation": "vertical",
+            "type": "container",
+            "styles": {
+              "block": {
+                "backgroundColor": "#999999"
+              }
+            },
+            "blocks": [
+            {
+              "type": "automatedLatestContent",
+              "withLayout": true,
+              "amount": "3",
+              "contentType": "post",
+              "terms": [],
+              "inclusionType": "include",
+              "displayType": "excerpt",
+              "titleFormat": "h3",
+              "titleAlignment": "left",
+              "titleIsLink": false,
+              "imageFullWidth": false,
+              "titlePosition": "abovePost",
+              "featuredImagePosition": "alternate",
+              "showAuthor": "no",
+              "authorPrecededBy": "Author:",
+              "showCategories": "no",
+              "categoriesPrecededBy": "Categories:",
+              "readMoreType": "button",
+              "readMoreText": "Read more",
+              "readMoreButton": {
+                "type": "button",
+                "text": "Read the post",
+                "url": "[postLink]",
+                "styles": {
+                  "block": {
+                    "backgroundColor": "#2ea1cd",
+                    "borderColor": "#0074a2",
+                    "borderWidth": "1px",
+                    "borderRadius": "5px",
+                    "borderStyle": "solid",
+                    "width": "160px",
+                    "lineHeight": "30px",
+                    "fontColor": "#ffffff",
+                    "fontFamily": "Verdana",
+                    "fontSize": "16px",
+                    "fontWeight": "normal",
+                    "textAlign": "center"
+                  }
+                }
+              },
+              "sortBy": "newest",
+              "showDivider": true,
+              "divider": {
+                "type": "divider",
+                "styles": {
+                  "block": {
+                    "backgroundColor": "transparent",
+                    "padding": "13px",
+                    "borderStyle": "solid",
+                    "borderWidth": "3px",
+                    "borderColor": "#aaaaaa"
+                  }
+                }
+              },
+              "backgroundColor": "#ffffff",
+              "backgroundColorAlternate": "#eeeeee"
+            }
+          ]
+          }
+        ]
+      }
+    ]
+  },
+  "globalStyles": {
+    "text": {
+      "fontColor": "#000000",
+      "fontFamily": "Arial",
+      "fontSize": "16px"
+    },
+    "h1": {
+      "fontColor": "#111111",
+      "fontFamily": "Trebuchet MS",
+      "fontSize": "30px"
+    },
+    "h2": {
+      "fontColor": "#222222",
+      "fontFamily": "Trebuchet MS",
+      "fontSize": "24px"
+    },
+    "h3": {
+      "fontColor": "#333333",
+      "fontFamily": "Trebuchet MS",
+      "fontSize": "22px"
+    },
+    "link": {
+      "fontColor": "#21759B",
+      "textDecoration": "underline"
+    },
+    "wrapper": {
+      "backgroundColor": "#ffffff"
+    },
+    "body": {
+      "backgroundColor": "#eeeeee"
+    }
+  },
+  "blockDefaults": {
+    "automatedLatestContent": {
+      "amount": "5",
+      "withLayout": false,
+      "contentType": "post",
+      "inclusionType": "include",
+      "displayType": "excerpt",
+      "titleFormat": "h1",
+      "titleAlignment": "left",
+      "titleIsLink": false,
+      "imageFullWidth": false,
+      "titlePosition": "abovePost",
+      "featuredImagePosition": "belowTitle",
+      "showAuthor": "no",
+      "authorPrecededBy": "Author:",
+      "showCategories": "no",
+      "categoriesPrecededBy": "Categories:",
+      "readMoreType": "button",
+      "readMoreText": "Read more",
+      "readMoreButton": {
+        "text": "Read more",
+        "url": "[postLink]",
+        "context": "automatedLatestContent.readMoreButton",
+        "styles": {
+          "block": {
+            "backgroundColor": "#2ea1cd",
+            "borderColor": "#0074a2",
+            "borderWidth": "1px",
+            "borderRadius": "5px",
+            "borderStyle": "solid",
+            "width": "180px",
+            "lineHeight": "40px",
+            "fontColor": "#ffffff",
+            "fontFamily": "Verdana",
+            "fontSize": "18px",
+            "fontWeight": "normal",
+            "textAlign": "center"
+          }
+        }
+      },
+      "sortBy": "newest",
+      "showDivider": true,
+      "divider": {
+        "context": "automatedLatestContent.divider",
+        "styles": {
+          "block": {
+            "backgroundColor": "transparent",
+            "padding": "13px",
+            "borderStyle": "solid",
+            "borderWidth": "3px",
+            "borderColor": "#aaaaaa"
+          }
+        }
+      },
+      "backgroundColor": "#ffffff",
+      "backgroundColorAlternate": "#eeeeee"
+    },
+    "automatedLatestContentLayout": {
+      "amount": "5",
+      "withLayout": true,
+      "contentType": "post",
+      "inclusionType": "include",
+      "displayType": "excerpt",
+      "titleFormat": "h1",
+      "titleAlignment": "left",
+      "titleIsLink": false,
+      "imageFullWidth": false,
+      "titlePosition": "abovePost",
+      "featuredImagePosition": "alternate",
+      "showAuthor": "no",
+      "authorPrecededBy": "Author:",
+      "showCategories": "no",
+      "categoriesPrecededBy": "Categories:",
+      "readMoreType": "button",
+      "readMoreText": "Read more",
+      "readMoreButton": {
+        "text": "Read more",
+        "url": "[postLink]",
+        "context": "automatedLatestContentLayout.readMoreButton",
+        "styles": {
+          "block": {
+            "backgroundColor": "#2ea1cd",
+            "borderColor": "#0074a2",
+            "borderWidth": "1px",
+            "borderRadius": "5px",
+            "borderStyle": "solid",
+            "width": "180px",
+            "lineHeight": "40px",
+            "fontColor": "#ffffff",
+            "fontFamily": "Verdana",
+            "fontSize": "18px",
+            "fontWeight": "normal",
+            "textAlign": "center"
+          }
+        }
+      },
+      "sortBy": "newest",
+      "showDivider": true,
+      "divider": {
+        "context": "automatedLatestContentLayout.divider",
+        "styles": {
+          "block": {
+            "backgroundColor": "transparent",
+            "padding": "13px",
+            "borderStyle": "solid",
+            "borderWidth": "3px",
+            "borderColor": "#aaaaaa"
+          }
+        }
+      },
+      "backgroundColor": "#ffffff",
+      "backgroundColorAlternate": "#eeeeee"
+    },
+    "button": {
+      "text": "Read the post",
+      "url": "[postLink]",
+      "styles": {
+        "block": {
+          "backgroundColor": "#2ea1cd",
+          "borderColor": "#0074a2",
+          "borderWidth": "1px",
+          "borderRadius": "5px",
+          "borderStyle": "solid",
+          "width": "180px",
+          "lineHeight": "40px",
+          "fontColor": "#ffffff",
+          "fontFamily": "Verdana",
+          "fontSize": "18px",
+          "fontWeight": "normal",
+          "textAlign": "center"
+        }
+      },
+      "type": "button"
+    },
+    "container": {
+      "styles": {
+        "block": {
+          "backgroundColor": "transparent"
+        }
+      }
+    },
+    "divider": {
+      "styles": {
+        "block": {
+          "backgroundColor": "transparent",
+          "padding": "13px",
+          "borderStyle": "solid",
+          "borderWidth": "3px",
+          "borderColor": "#aaaaaa"
+        }
+      },
+      "type": "divider"
+    },
+    "footer": {
+      "text": "<p><a href=\"[link:subscription_unsubscribe_url]\">Unsubscribe</a> | <a href=\"[link:subscription_manage_url]\">Manage subscription</a><br />Add your postal address here!</p>",
+      "styles": {
+        "block": {
+          "backgroundColor": "transparent"
+        },
+        "text": {
+          "fontColor": "#222222",
+          "fontFamily": "Arial",
+          "fontSize": "12px",
+          "textAlign": "center"
+        },
+        "link": {
+          "fontColor": "#6cb7d4",
+          "textDecoration": "none"
+        }
+      }
+    },
+    "posts": {
+      "amount": "10",
+      "withLayout": true,
+      "contentType": "post",
+      "postStatus": "publish",
+      "inclusionType": "include",
+      "displayType": "excerpt",
+      "titleFormat": "h1",
+      "titleAlignment": "left",
+      "titleIsLink": false,
+      "imageFullWidth": false,
+      "titlePosition": "abovePost",
+      "featuredImagePosition": "alternate",
+      "showAuthor": "no",
+      "authorPrecededBy": "Author:",
+      "showCategories": "no",
+      "categoriesPrecededBy": "Categories:",
+      "readMoreType": "link",
+      "readMoreText": "Read more",
+      "readMoreButton": {
+        "text": "Read more",
+        "url": "[postLink]",
+        "context": "posts.readMoreButton",
+        "styles": {
+          "block": {
+            "backgroundColor": "#2ea1cd",
+            "borderColor": "#0074a2",
+            "borderWidth": "1px",
+            "borderRadius": "5px",
+            "borderStyle": "solid",
+            "width": "180px",
+            "lineHeight": "40px",
+            "fontColor": "#ffffff",
+            "fontFamily": "Verdana",
+            "fontSize": "18px",
+            "fontWeight": "normal",
+            "textAlign": "center"
+          }
+        }
+      },
+      "sortBy": "newest",
+      "showDivider": true,
+      "divider": {
+        "context": "posts.divider",
+        "styles": {
+          "block": {
+            "backgroundColor": "transparent",
+            "padding": "13px",
+            "borderStyle": "solid",
+            "borderWidth": "3px",
+            "borderColor": "#aaaaaa"
+          }
+        }
+      },
+      "backgroundColor": "#ffffff",
+      "backgroundColorAlternate": "#eeeeee"
+    },
+    "social": {
+      "iconSet": "default",
+      "icons": [
+        {
+          "type": "socialIcon",
+          "iconType": "facebook",
+          "link": "http://www.facebook.com",
+          "image": "http://localhost/wp-content/plugins/mailpoet/assets/img/newsletter_editor/social-icons/01-social/Facebook.png?mailpoet_version=3.7.8",
+          "height": "32px",
+          "width": "32px",
+          "text": "Facebook"
+        },
+        {
+          "type": "socialIcon",
+          "iconType": "twitter",
+          "link": "http://www.twitter.com",
+          "image": "http://localhost/wp-content/plugins/mailpoet/assets/img/newsletter_editor/social-icons/01-social/Twitter.png?mailpoet_version=3.7.8",
+          "height": "32px",
+          "width": "32px",
+          "text": "Twitter"
+        }
+      ]
+    },
+    "spacer": {
+      "styles": {
+        "block": {
+          "backgroundColor": "transparent",
+          "height": "40px"
+        }
+      }
+    },
+    "header": {
+      "text": "<a href=\"[link:newsletter_view_in_browser_url]\">View this in your browser.</a>",
+      "styles": {
+        "block": {
+          "backgroundColor": "transparent"
+        },
+        "text": {
+          "fontColor": "#222222",
+          "fontFamily": "Arial",
+          "fontSize": "12px",
+          "textAlign": "center"
+        },
+        "link": {
+          "fontColor": "#6cb7d4",
+          "textDecoration": "underline"
+        }
+      }
+    }
+  }
+}