diff --git a/components/email/__tests__/download-all-attachments.test.tsx b/components/email/__tests__/download-all-attachments.test.tsx
index df88e19fc..1eaf7d825 100644
--- a/components/email/__tests__/download-all-attachments.test.tsx
+++ b/components/email/__tests__/download-all-attachments.test.tsx
@@ -18,6 +18,7 @@ vi.mock('@/hooks/use-media-query', () => ({
   useDeviceDetection: () => ({ isMobile: false, isTablet: false, isDesktop: true }),
   useMediaQuery: () => false,
   useIsDesktop: () => true,
+  narrowerThan: (px: number) => `(width < ${px / 16}rem)`,
 }));
 vi.mock('@/components/tour/tour-provider', () => ({
   useTour: () => ({ activeTour: null, registerStep: vi.fn() }),
diff --git a/components/mail/__tests__/blob-routing.test.tsx b/components/mail/__tests__/blob-routing.test.tsx
index f54b88a07..d1c2d69e0 100644
--- a/components/mail/__tests__/blob-routing.test.tsx
+++ b/components/mail/__tests__/blob-routing.test.tsx
@@ -51,6 +51,7 @@ vi.mock('@/hooks/use-media-query', () => ({
   useDeviceDetection: () => ({ isMobile: device.mobile, isTablet: false, isDesktop: !device.mobile }),
   useMediaQuery: () => false,
   useIsDesktop: () => true,
+  narrowerThan: (px: number) => `(width < ${px / 16}rem)`,
 }));
 vi.mock('@/lib/push-bindings', () => ({ reconcilePushBindings: () => {}, releasePushBindings: () => {} }));
 vi.mock('@/components/email/email-list', async () => {
diff --git a/eslint.config.mjs b/eslint.config.mjs
index bc2093315..0723a5eb2 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -89,6 +89,7 @@ export default [
       "benchmark/**",
       "examples/**",
       "integration/**",
+      "scripts/a11y-guard/axe.min.js",
     ],
   },
 ];
diff --git a/vitest.config.ts b/vitest.config.ts
index f1d2bfb89..95a484920 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -14,7 +14,7 @@ export default defineConfig({
     // must be globbed at any depth or the nested repos/*/node_modules trees
     // get collected too.
     // scripts/lite/smoke/** is the Playwright smoke for the static Lite export.
-    exclude: ['integration/**', 'examples/**', 'repos/**', '**/node_modules/**', '.next/**', 'out/**', 'scripts/lite/smoke/**', 'scripts/perf-guard/**'],
+    exclude: ['integration/**', 'examples/**', 'repos/**', '**/node_modules/**', '.next/**', 'out/**', 'scripts/lite/smoke/**', 'scripts/perf-guard/**', 'scripts/a11y-guard/**'],
   },
   resolve: {
     alias: {