diff --git a/src/assets/css/comments.css b/src/assets/css/comments.css
index d3be79ff..e5188c7b 100644
--- a/src/assets/css/comments.css
+++ b/src/assets/css/comments.css
@@ -55,6 +55,10 @@
     background-color: var(--clr-quote-bg);
 }
 
+.inline-banner.warning {
+    background-color: #9e0f00;
+}
+
 .form-footer,
 .comment-footer {
     display: flex;
diff --git a/src/assets/js/comments.js b/src/assets/js/comments.js
index e4d418b0..454107c7 100644
--- a/src/assets/js/comments.js
+++ b/src/assets/js/comments.js
@@ -192,6 +192,23 @@ registerNamespace("GW.Controls", function (ns)
                 if (request.readyState == 4)
                 {
                     console.log(request.responseText);
+
+                    this.bannerEl.classList.add("warning");
+                    this.bannerEl.innerHTML =
+                        `
+                        <gw-icon iconKey="triangle-exclamation"></gw-icon>
+                        <span>
+                            That didn't work.
+                            ${this.fallbackEmail
+                                ? `<a class="full" href="mailto:${this.fallbackEmail}?subject=Comment on ${document.title}&body=${contentAry.join("; ")}">Click here to send as an email instead</a>.`
+                                : ""
+                             }
+                        </span>
+                        `;
+                }
+                else
+                {
+                    alert("Your comment has been submitted!");
                 }
             };
 
diff --git a/src/pages/guestbook.njk b/src/pages/guestbook.njk
index 577ac1c0..e493003d 100644
--- a/src/pages/guestbook.njk
+++ b/src/pages/guestbook.njk
@@ -20,6 +20,7 @@ eleventyComputed:
     id="guestbookForm"
     titleText="Sign the Guestbook"
     discordURL="https://discord.com/api/webhooks/1243241310664659076/JQNvj369B_d8DipyooUrYA7gSfd01lBcUb7-U45OVLXkHoEkMFdjrY555B-WZYG9CwL0"
+    fallbackEmail="{{ sitemeta.siteAuthor.email }}"
 ></gw-comment-form>
 
 <h2 class="gb__messages--title">Guest Messages</h2>