diff --git a/auth.config.mjs b/auth.config.mjs
index e8ea219..1071847 100644
--- a/auth.config.mjs
+++ b/auth.config.mjs
@@ -9,6 +9,17 @@ const logsnag = new LogSnag({
 	project: "magicsnap",
 });
 
+function generateRandomString() {
+	const chars =
+		"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+	let result = "";
+	for (let i = 0; i < 16; i++) {
+		const randomIndex = Math.floor(Math.random() * chars.length);
+		result += chars.charAt(randomIndex);
+	}
+	return result;
+}
+
 export default defineConfig({
 	providers: [
 		Slack({
@@ -50,6 +61,7 @@ export default defineConfig({
 						if (users.length === 0) {
 							await db.insert(User).values({
 								userId: profile["https://slack.com/user_id"],
+								hash: generateRandomString(),
 								name: profile.name,
 								email: profile.email,
 								image: profile.picture,
@@ -97,6 +109,7 @@ export default defineConfig({
 						} else {
 							await db.insert(User).values({
 								userId: profile["https://slack.com/user_id"],
+								hash: generateRandomString(),
 								name: profile.name,
 								email: profile.email,
 								image: profile.picture,
diff --git a/db/config.ts b/db/config.ts
index 01cfc63..d5c4328 100644
--- a/db/config.ts
+++ b/db/config.ts
@@ -15,6 +15,7 @@ const Organization = defineTable({
 const User = defineTable({
   columns: {
     userId: column.text({ primaryKey: true }),
+    hash: column.text(),
     team: column.text(),
     name: column.text(),
     email: column.text(),
diff --git a/src/pages/api/remind.ts b/src/pages/api/remind.ts
index 4feeb07..d90005d 100644
--- a/src/pages/api/remind.ts
+++ b/src/pages/api/remind.ts
@@ -1,11 +1,5 @@
 import type { APIRoute } from "astro"
 import { db, User, Organization, Event } from "astro:db";
-import { LogSnag } from "logsnag";
-
-const logsnag = new LogSnag({
-    token: process.env.LOGSNAG_TOKEN || "",
-    project: "magicsnap",
-});
 
 export const POST: APIRoute = async ({ request }) => {
     // get authorization header
@@ -26,13 +20,6 @@ export const POST: APIRoute = async ({ request }) => {
             return diffHours < 24 && diffHours > 0
         })
 
-        await logsnag.track({
-            channel: "api",
-            event: "reminder-sent",
-            description: `Sent reminder to ${users.length} users in ${organizations.length} different organizations about ${eventsHappeningToday.length} events happening today`,
-            icon: "📬",
-        });
-
         return new Response(JSON.stringify({
             ok: true, eventsHappeningToday: eventsHappeningToday, users: users, organizations: organizations
         }), { status: 200 })
diff --git a/src/pages/messages.astro b/src/pages/messages.astro
index 1a5b6b2..1955263 100644
--- a/src/pages/messages.astro
+++ b/src/pages/messages.astro
@@ -88,12 +88,15 @@ if (Astro.request.method === "POST") {
 				.map((user) => ({ email: user.email, name: user.name }));
 		}
 
+		message += "  \n\n-----\n\n";
+		message += `*This email was sent by MagicSnap because you are a member of ${session.teamName}. If you have any questions or need assistance, please contact us at spellcheck@magicsnap.org.*`;
+
 		const email = {
 			to: "annoucements@magicsnap.org",
 			bcc: userList,
 			from: "magic.broadcast@magicsnap.org",
 			subject: subject,
-			text: message,
+			markdown: message,
 		};
 
 		const lastEmailHash = (
@@ -102,7 +105,7 @@ if (Astro.request.method === "POST") {
 				.from(Organization)
 				.where(
 					and(
-						like(Organization.lastMessageHash, Md5.hashStr(email.text)),
+						like(Organization.lastMessageHash, Md5.hashStr(email.markdown)),
 						like(Organization.team, session.team)
 					)
 				)
@@ -139,7 +142,7 @@ if (Astro.request.method === "POST") {
 				await db
 					.update(Organization)
 					.set({
-						lastMessageHash: Md5.hashStr(email.text),
+						lastMessageHash: Md5.hashStr(email.markdown),
 					})
 					.where(like(Organization.team, session.team));
 
diff --git a/src/pages/update/[team]/[eventID]/[userID].astro b/src/pages/update/[team]/[eventID]/[userID].astro
new file mode 100644
index 0000000..4cc0e71
--- /dev/null
+++ b/src/pages/update/[team]/[eventID]/[userID].astro
@@ -0,0 +1,158 @@
+---
+import Base from "../../../../Layouts/Base.astro";
+import ThreeWayToggle from "../../../../components/ThreeWayToggle.astro";
+
+import { LogSnag } from "logsnag";
+import { db, like, and, Event, User } from "astro:db";
+
+const logsnag = new LogSnag({
+	token: process.env.LOGSNAG_TOKEN || "",
+	project: "magicsnap",
+});
+
+const { team, eventID, userID } = Astro.params as {
+	team: string;
+	eventID: string;
+	userID: string;
+};
+
+const user = (
+	await db
+		.select()
+		.from(User)
+		.where(and(like(User.team, team), like(User.userId, userID)))
+		.all()
+)[0];
+
+const hash = Astro.url.searchParams.get("hash");
+
+if (Astro.request.method === "POST" && user && hash === user.hash) {
+	try {
+		const data = await Astro.request.formData();
+
+		if (data.get("availability") != null) {
+			const eventID = data.get("eventID") as string;
+			const status = data.get("selected") as string;
+
+			const event = (
+				await db.select().from(Event).where(like(Event.id, eventID))
+			)?.[0];
+
+			if (event) {
+				let statusGoing = event.statusGoing
+					.split(",")
+					.filter((id) => id !== "");
+				let statusMaybe = event.statusMaybe
+					.split(",")
+					.filter((id) => id !== "");
+				let statusNotGoing = event.statusNotGoing
+					.split(",")
+					.filter((id) => id !== "");
+
+				const currentStatus = statusGoing.includes(user.userId)
+					? "yes"
+					: statusMaybe.includes(user.userId)
+						? "maybe"
+						: "no";
+
+				if (currentStatus !== status) {
+					if (status === "yes") {
+						statusGoing.push(user.userId);
+						statusMaybe = statusMaybe.filter((id) => id !== user.userId);
+						statusNotGoing = statusNotGoing.filter((id) => id !== user.userId);
+					} else if (status === "maybe") {
+						statusMaybe.push(user.userId);
+						statusGoing = statusGoing.filter((id) => id !== user.userId);
+						statusNotGoing = statusNotGoing.filter((id) => id !== user.userId);
+					} else if (status === "no" && currentStatus !== "no") {
+						statusNotGoing.push(user.userId);
+						statusGoing = statusGoing.filter((id) => id !== user.userId);
+						statusMaybe = statusMaybe.filter((id) => id !== user.userId);
+					}
+				}
+
+				await db
+					.update(Event)
+					.set({
+						statusGoing: statusGoing.join(","),
+						statusMaybe: statusMaybe.join(","),
+						statusNotGoing: statusNotGoing.join(","),
+					})
+					.where(like(Event.id, eventID));
+
+				await logsnag.track({
+					channel: "actions",
+					event: "event_status_change",
+					icon: "📅",
+					user_id: user.userId,
+				});
+			}
+		}
+	} catch (error) {
+		if (error instanceof Error) {
+			await logsnag.track({
+				channel: "errors",
+				event: "event_status_change_error",
+				icon: "📅",
+				user_id: user.userId,
+				tags: {
+					error: error.message,
+				},
+			});
+		}
+	}
+}
+
+const event = (
+	await db
+		.select()
+		.from(Event)
+		.where(and(like(Event.team, team), like(Event.id, eventID)))
+		.all()
+)[0];
+---
+
+<Base title="Update Your Availability">
+	<section class="event">
+		{user && user.hash === hash && event && (
+			<h2>{event.name}</h2>
+			<p>
+				{event.name} is being held at {event.location} on {
+					event.date.toLocaleDateString() +
+						" at " +
+						event.date.toLocaleTimeString([], {
+							hour: "numeric",
+							minute: "2-digit",
+						})
+				}
+			</p>
+			<p>{event.comments}</p>
+			<h3>Are you going?</h3>
+			<section class="availability-container">
+				<ThreeWayToggle
+					eventID=`${event.id}`
+					selected=`${event.statusGoing?.includes(userID) ? "yes" : event.statusMaybe?.includes(userID) ? "maybe" : "no"}`
+				/>
+			</section>
+		)}
+		{!user && <p>Sorry, we couldn't find your user account.</p>}
+		{user && user.hash !== hash && <p>Sorry, the link you used is invalid.</p>}
+		{!event && <p>Sorry, we couldn't find the event you're looking for.</p>}
+	</section>
+</Base>
+
+<style>
+	.event {
+		text-align: center;
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+	}
+	.availability-container {
+		display: flex;
+		flex-direction: column;
+		border: 1px solid #ccc;
+		width: fit-content;
+		padding-left: 4rem;
+	}
+</style>