diff --git a/apps/mail/lib/auth-proxy.ts b/apps/mail/lib/auth-proxy.ts
index f972306e5..253426baa 100644
--- a/apps/mail/lib/auth-proxy.ts
+++ b/apps/mail/lib/auth-proxy.ts
@@ -3,7 +3,9 @@ import { authClient } from './auth-client';
 export const authProxy = {
   api: {
     getSession: async ({ headers }: { headers: Headers }) => {
-      const session = await authClient.getSession({ fetchOptions: { headers } });
+      const session = await authClient.getSession({
+        fetchOptions: { headers, credentials: 'include' },
+      });
       if (session.error) throw new Error(session.error.message);
       return session.data;
     },
diff --git a/apps/mail/providers/server-providers.tsx b/apps/mail/providers/server-providers.tsx
index 9f9257432..ee975d162 100644
--- a/apps/mail/providers/server-providers.tsx
+++ b/apps/mail/providers/server-providers.tsx
@@ -8,8 +8,10 @@ import { authProxy } from '@/lib/auth-proxy';
 export async function ServerProviders({ children }: PropsWithChildren) {
   const messages = await getMessages();
   return (
-    <NextIntlClientProvider messages={messages}>
-      <QueryProvider>{children}</QueryProvider>
-    </NextIntlClientProvider>
+    <AutumnProvider authPlugin={{ provider: 'better-auth', instance: authProxy }}>
+      <NextIntlClientProvider messages={messages}>
+        <QueryProvider>{children}</QueryProvider>
+      </NextIntlClientProvider>
+    </AutumnProvider>
   );
 }