diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 6f9fa42a..304a4e50 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -1379,6 +1379,14 @@
     "message": "Spam Value",
     "description": ""
   },
+  "Spam": {
+    "message": "Spam",
+    "description": ""
+  },
+  "Valid": {
+    "message": "Valid",
+    "description": ""
+  },
   "Moved_to_Spam": {
     "message": "Moved to Spam",
     "description": ""
diff --git a/js/mzta-compose-script.js b/js/mzta-compose-script.js
index 972a32de..3d74322e 100644
--- a/js/mzta-compose-script.js
+++ b/js/mzta-compose-script.js
@@ -617,9 +617,48 @@ switch (message.command) {
 
     break;
 
+  case "showSpamReport":
+    const data = message.data;
+    if(document.getElementById('mzta-spam-report-banner')) return Promise.resolve(true);
+
+    const container = document.createElement('div');
+    container.id = 'mzta-spam-report-banner';
+    
+    const isDark = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
+    
+    let bgColor = '#f8f9fa';
+    let textColor = '#333';
+    let borderColor = '#ccc';
+    
+    if (data.spamValue < (data.SpamThreshold || 50)) {
+        bgColor = isDark ? '#5a1a1a' : '#ffe6e6';
+        textColor = isDark ? '#ffcccc' : '#cc0000';
+        borderColor = '#cc0000';
+    } else {
+        bgColor = isDark ? '#1a401a' : '#e6ffe6';
+        textColor = isDark ? '#ccffcc' : '#006600';
+        borderColor = '#006600';
+    }
+
+    container.style.cssText = `background-color: ${bgColor}; color: ${textColor}; border-bottom: 1px solid ${borderColor}; padding: 8px 12px; font-family: system-ui, -apple-system, sans-serif; font-size: 13px; display: flex; align-items: center; gap: 15px; width: 100%; box-sizing: border-box;`;
+
+    const scoreText = document.createElement('strong');
+    scoreText.textContent = ((data.spamValue < (data.SpamThreshold || 50)) ? browser.i18n.getMessage("Spam") : browser.i18n.getMessage("Valid")) + " [" + data.spamValue + "/100]";
+    
+    const reasonText = document.createElement('span');
+    reasonText.textContent = browser.i18n.getMessage("Explanation") + ": " + data.explanation;
+
+    container.appendChild(scoreText);
+    container.appendChild(reasonText);
+
+    document.body.insertBefore(container, document.body.firstChild);
+    return Promise.resolve(true);
+
   default:
     // do nothing
     return Promise.resolve(false);
     break;
 }
-});
\ No newline at end of file
+});
+
+browser.runtime.sendMessage({ command: "checkSpamReport" });
\ No newline at end of file
diff --git a/mzta-background.js b/mzta-background.js
index 5fee2dd6..886f7384 100644
--- a/mzta-background.js
+++ b/mzta-background.js
@@ -358,6 +358,22 @@ messenger.runtime.onMessage.addListener((message, sender, sendResponse) => {
             case 'api_send_custom_text':
                 browser.tabs.sendMessage(message.tabId, { command: "api_send_custom_text", custom_text: message.custom_text });
                 break;
+            case 'checkSpamReport':
+                async function _checkSpamReport(tabId) {
+                    try {
+                        if (sender.tab.type !== 'messageDisplay' && sender.tab.type !== 'mail') return;
+                        let message = await browser.messageDisplay.getDisplayedMessage(tabId);
+                        if (!message) return;
+                        let report = await taSpamReport.loadReportData(message.headerMessageId);
+                        if (report) {
+                            browser.tabs.sendMessage(tabId, { command: "showSpamReport", data: report });
+                        }
+                    } catch (e) {
+                        taLog.error("Error in checkSpamReport: " + e);
+                    }
+                }
+                _checkSpamReport(sender.tab.id);
+                break;
             default:
                 break;
         }