diff --git a/__test__/features/Settings/SettingsPage.test.tsx b/__test__/features/Settings/SettingsPage.test.tsx
index 658e734..db85826 100644
--- a/__test__/features/Settings/SettingsPage.test.tsx
+++ b/__test__/features/Settings/SettingsPage.test.tsx
@@ -28,6 +28,7 @@ describe("SettingsPage", () => {
         language: "en",
         datetime: { timeZone: "UTC" },
       },
+      alarmEmailsEnabled: false,
       loading: false,
       error: null,
     },
@@ -90,7 +91,7 @@ describe("SettingsPage", () => {
     fireEvent.click(notificationsTab);
 
     expect(
-      screen.getByText(/settings.notifications.empty/i)
+      screen.getByText(/settings.notifications.deliveryMethod/i)
     ).toBeInTheDocument();
   });
 
@@ -253,7 +254,7 @@ describe("SettingsPage", () => {
     );
   });
 
-  it("shows empty state in Notifications tab", () => {
+  it("shows Email toggle in Notifications tab", () => {
     renderWithProviders(<SettingsPage />, preloadedState);
 
     const notificationsTab = screen.getByRole("tab", {
@@ -262,7 +263,10 @@ describe("SettingsPage", () => {
     fireEvent.click(notificationsTab);
 
     expect(
-      screen.getByText("settings.notifications.empty")
+      screen.getByText(/settings.notifications.deliveryMethod/i)
+    ).toBeInTheDocument();
+    expect(
+      screen.getByRole("switch", { name: /settings.notifications.email/i })
     ).toBeInTheDocument();
   });
 
@@ -658,5 +662,181 @@ describe("SettingsPage", () => {
         );
       });
     });
+
+    describe("Alarm Emails Settings", () => {
+      beforeEach(() => {
+        (api.patch as jest.Mock).mockResolvedValue({ status: 204 });
+      });
+
+      it("displays alarmEmails toggle with correct initial state", () => {
+        const stateWithAlarmEmailsEnabled = {
+          ...preloadedState,
+          user: {
+            ...preloadedState.user,
+            alarmEmailsEnabled: true,
+          },
+        };
+        renderWithProviders(<SettingsPage />, stateWithAlarmEmailsEnabled);
+
+        const notificationsTab = screen.getByRole("tab", {
+          name: /settings.notifications/i,
+        });
+        fireEvent.click(notificationsTab);
+
+        const toggle = screen.getByRole("switch", {
+          name: /settings.notifications.email/i,
+        }) as HTMLInputElement;
+        expect(toggle).toBeInTheDocument();
+        expect(toggle.checked).toBe(true);
+      });
+
+      it("displays alarmEmails toggle as true when alarmEmailsEnabled is null", () => {
+        const stateWithNullAlarmEmails = {
+          ...preloadedState,
+          user: {
+            ...preloadedState.user,
+            alarmEmailsEnabled: null,
+          },
+        };
+        renderWithProviders(<SettingsPage />, stateWithNullAlarmEmails);
+
+        const notificationsTab = screen.getByRole("tab", {
+          name: /settings.notifications/i,
+        });
+        fireEvent.click(notificationsTab);
+
+        const toggle = screen.getByRole("switch", {
+          name: /settings.notifications.email/i,
+        }) as HTMLInputElement;
+        expect(toggle).toBeInTheDocument();
+        expect(toggle.checked).toBe(true);
+      });
+
+      it("updates alarmEmails immediately (optimistic update) and calls API in background", async () => {
+        (api.patch as jest.Mock).mockResolvedValue({ status: 204 });
+
+        const { store } = renderWithProviders(<SettingsPage />, preloadedState);
+
+        const notificationsTab = screen.getByRole("tab", {
+          name: /settings.notifications/i,
+        });
+        fireEvent.click(notificationsTab);
+
+        const toggle = screen.getByRole("switch", {
+          name: /settings.notifications.email/i,
+        }) as HTMLInputElement;
+        expect(toggle.checked).toBe(false);
+
+        fireEvent.click(toggle);
+
+        // AlarmEmails should be updated immediately (optimistic update)
+        await waitFor(() => {
+          const state = store.getState();
+          expect(state.user?.alarmEmailsEnabled).toBe(true);
+        });
+
+        // API should be called in background
+        await waitFor(() => {
+          expect(api.patch).toHaveBeenCalledWith(
+            "api/configurations?scope=user",
+            expect.objectContaining({
+              json: expect.arrayContaining([
+                expect.objectContaining({
+                  name: "calendar",
+                  configurations: expect.arrayContaining([
+                    expect.objectContaining({
+                      name: "alarmEmails",
+                      value: true,
+                    }),
+                  ]),
+                }),
+              ]),
+            })
+          );
+        });
+      });
+
+      it("rolls back alarmEmails change if API call fails", async () => {
+        (api.patch as jest.Mock).mockRejectedValue(new Error("API Error"));
+
+        const { store } = renderWithProviders(<SettingsPage />, preloadedState);
+
+        const notificationsTab = screen.getByRole("tab", {
+          name: /settings.notifications/i,
+        });
+        fireEvent.click(notificationsTab);
+
+        const toggle = screen.getByRole("switch", {
+          name: /settings.notifications.email/i,
+        }) as HTMLInputElement;
+        expect(toggle.checked).toBe(false);
+
+        fireEvent.click(toggle);
+
+        // Wait for rollback - alarmEmails should be rolled back to false after error
+        await waitFor(
+          () => {
+            const state = store.getState();
+            expect(state.user?.alarmEmailsEnabled).toBe(false);
+          },
+          { timeout: 3000 }
+        );
+      });
+
+      it("sends false value when toggle is turned off", async () => {
+        (api.patch as jest.Mock).mockResolvedValue({ status: 204 });
+
+        const stateWithAlarmEmailsEnabled = {
+          ...preloadedState,
+          user: {
+            ...preloadedState.user,
+            alarmEmailsEnabled: true,
+          },
+        };
+
+        const { store } = renderWithProviders(
+          <SettingsPage />,
+          stateWithAlarmEmailsEnabled
+        );
+
+        const notificationsTab = screen.getByRole("tab", {
+          name: /settings.notifications/i,
+        });
+        fireEvent.click(notificationsTab);
+
+        const toggle = screen.getByRole("switch", {
+          name: /settings.notifications.email/i,
+        }) as HTMLInputElement;
+        expect(toggle.checked).toBe(true);
+
+        fireEvent.click(toggle);
+
+        // AlarmEmails should be updated immediately (optimistic update)
+        await waitFor(() => {
+          const state = store.getState();
+          expect(state.user?.alarmEmailsEnabled).toBe(false);
+        });
+
+        // API should be called with false value
+        await waitFor(() => {
+          expect(api.patch).toHaveBeenCalledWith(
+            "api/configurations?scope=user",
+            expect.objectContaining({
+              json: expect.arrayContaining([
+                expect.objectContaining({
+                  name: "calendar",
+                  configurations: expect.arrayContaining([
+                    expect.objectContaining({
+                      name: "alarmEmails",
+                      value: false,
+                    }),
+                  ]),
+                }),
+              ]),
+            })
+          );
+        });
+      });
+    });
   });
 });
diff --git a/src/features/Settings/SettingsPage.tsx b/src/features/Settings/SettingsPage.tsx
index f197138..688f078 100644
--- a/src/features/Settings/SettingsPage.tsx
+++ b/src/features/Settings/SettingsPage.tsx
@@ -13,8 +13,8 @@ import {
   MenuItem,
   Typography,
   Snackbar,
-  FormControlLabel,
   Switch,
+  FormControlLabel,
 } from "@mui/material";
 import ArrowBackIcon from "@mui/icons-material/ArrowBack";
 import SettingsIcon from "@mui/icons-material/Settings";
@@ -30,6 +30,7 @@ import {
   updateUserConfigurationsAsync,
   setLanguage as setUserLanguage,
   setTimezone as setUserTimeZone,
+  setAlarmEmails,
 } from "../User/userSlice";
 import { AVAILABLE_LANGUAGES } from "./constants";
 import { useI18n } from "cozy-ui/transpiled/react/providers/I18n";
@@ -64,13 +65,16 @@ export default function SettingsPage() {
   const isBrowserDefault = useAppSelector(
     (state) => state.settings.isBrowserDefaultTimeZone
   );
-
+  const alarmEmailsEnabled = useAppSelector(
+    (state) => state.user?.alarmEmailsEnabled ?? true
+  );
   const [activeNavItem, setActiveNavItem] =
     useState<SidebarNavItem>("settings");
   const [activeSettingsSubTab, setActiveSettingsSubTab] =
     useState<SettingsSubTab>("settings");
   const [languageErrorOpen, setLanguageErrorOpen] = useState(false);
   const [timeZoneErrorOpen, setTimeZoneErrorOpen] = useState(false);
+  const [alarmEmailsErrorOpen, setAlarmEmailsErrorOpen] = useState(false);
 
   const handleBackClick = () => {
     dispatch(setView("calendar"));
@@ -164,6 +168,30 @@ export default function SettingsPage() {
     setTimeZoneErrorOpen(false);
   };
 
+  const handleAlarmEmailsToggle = (
+    event: React.ChangeEvent<HTMLInputElement>
+  ) => {
+    const newValue = event.target.checked;
+    const previousValue = alarmEmailsEnabled;
+
+    // Optimistic update - update UI immediately
+    dispatch(setAlarmEmails(newValue));
+
+    // Call API in background, don't wait for it
+    dispatch(updateUserConfigurationsAsync({ alarmEmails: newValue }))
+      .unwrap()
+      .catch((error) => {
+        console.error("Failed to update alarm emails:", error);
+        // Rollback on error
+        dispatch(setAlarmEmails(previousValue));
+        setAlarmEmailsErrorOpen(true);
+      });
+  };
+
+  const handleAlarmEmailsErrorClose = () => {
+    setAlarmEmailsErrorOpen(false);
+  };
+
   return (
     <main className="main-layout settings-layout">
       <Box className="settings-sidebar">
@@ -291,10 +319,32 @@ export default function SettingsPage() {
               )}
               {activeSettingsSubTab === "notifications" && (
                 <Box className="settings-tab-content">
-                  <Typography variant="body1" color="text.secondary">
-                    {t("settings.notifications.empty") ||
-                      "Notifications settings coming soon"}
+                  <Typography
+                    variant="body2"
+                    color="text.secondary"
+                    sx={{ mb: 3 }}
+                  >
+                    {t("settings.notifications.deliveryMethod") ||
+                      "Delivery method"}
                   </Typography>
+                  <FormControlLabel
+                    control={
+                      <Switch
+                        checked={alarmEmailsEnabled}
+                        onChange={handleAlarmEmailsToggle}
+                        aria-label={
+                          t("settings.notifications.email") || "Email"
+                        }
+                      />
+                    }
+                    label={t("settings.notifications.email") || "Email"}
+                    labelPlacement="start"
+                    sx={{
+                      minWidth: 400,
+                      justifyContent: "space-between",
+                      marginLeft: 0,
+                    }}
+                  />
                 </Box>
               )}
             </>
@@ -322,6 +372,15 @@ export default function SettingsPage() {
         onClose={handleTimeZoneErrorClose}
         message={t("settings.timeZoneUpdateError")}
       />
+      <Snackbar
+        open={alarmEmailsErrorOpen}
+        autoHideDuration={4000}
+        onClose={handleAlarmEmailsErrorClose}
+        message={
+          t("settings.alarmEmailsUpdateError") ||
+          "Failed to update email notifications setting"
+        }
+      />
     </main>
   );
 }
diff --git a/src/features/User/userAPI.ts b/src/features/User/userAPI.ts
index 741e801..63fb28c 100644
--- a/src/features/User/userAPI.ts
+++ b/src/features/User/userAPI.ts
@@ -39,12 +39,14 @@ export interface UserConfigurationUpdates {
   notifications?: Record<string, unknown>;
   timezone?: string | null;
   previousConfig?: Record<string, any>;
+  alarmEmails?: boolean;
 }
 
 export async function updateUserConfigurations(
   updates: UserConfigurationUpdates
 ): Promise<Response | { status: number }> {
   const coreConfigs: Array<{ name: string; value: any }> = [];
+  const calendarConfigs: Array<{ name: string; value: any }> = [];
 
   if (updates.language !== undefined) {
     coreConfigs.push({ name: "language", value: updates.language });
@@ -61,17 +63,37 @@ export async function updateUserConfigurations(
       },
     });
   }
+  if (updates.alarmEmails !== undefined) {
+    calendarConfigs.push({
+      name: "alarmEmails",
+      value: updates.alarmEmails,
+    });
+  }
 
-  if (coreConfigs.length === 0) {
+  const modules: Array<{
+    name: string;
+    configurations: Array<{ name: string; value: any }>;
+  }> = [];
+
+  if (coreConfigs.length > 0) {
+    modules.push({
+      name: "core",
+      configurations: coreConfigs,
+    });
+  }
+
+  if (calendarConfigs.length > 0) {
+    modules.push({
+      name: "calendar",
+      configurations: calendarConfigs,
+    });
+  }
+
+  if (modules.length === 0) {
     return Promise.resolve({ status: 204 });
   }
 
   return await api.patch(`api/configurations?scope=user`, {
-    json: [
-      {
-        name: "core",
-        configurations: coreConfigs,
-      },
-    ],
+    json: modules,
   });
 }
diff --git a/src/features/User/userSlice.ts b/src/features/User/userSlice.ts
index 19758f1..e82c3e7 100644
--- a/src/features/User/userSlice.ts
+++ b/src/features/User/userSlice.ts
@@ -51,6 +51,7 @@ export const userSlice = createSlice({
         timeZone: null as string | null,
       },
     } as Record<string, any>,
+    alarmEmailsEnabled: null as boolean | null,
     loading: true,
     error: null as unknown as string | null,
   },
@@ -82,6 +83,9 @@ export const userSlice = createSlice({
         state.userData.timezone = action.payload;
       }
     },
+    setAlarmEmails: (state, action) => {
+      state.alarmEmailsEnabled = action.payload;
+    },
     clearError: (state) => {
       state.error = null;
     },
@@ -153,6 +157,19 @@ export const userSlice = createSlice({
               }
             }
           }
+
+          // Extract alarmEmails from configurations.modules
+          const calendarModule = action.payload.configurations.modules.find(
+            (module: any) => module.name === "calendar"
+          );
+          if (calendarModule?.configurations) {
+            const alarmEmailsConfig = calendarModule.configurations.find(
+              (config: any) => config.name === "alarmEmails"
+            );
+            if (alarmEmailsConfig) {
+              state.alarmEmailsEnabled = alarmEmailsConfig.value === true;
+            }
+          }
         }
       })
       .addCase(getOpenPaasUserDataAsync.pending, (state) => {
@@ -181,6 +198,9 @@ export const userSlice = createSlice({
             state.userData.timezone = action.payload.timezone;
           }
         }
+        if (action.payload.alarmEmails !== undefined) {
+          state.alarmEmailsEnabled = action.payload.alarmEmails === true;
+        }
       })
       .addCase(updateUserConfigurationsAsync.rejected, (state, action) => {
         if (action.payload?.status !== 401) {
@@ -192,7 +212,13 @@ export const userSlice = createSlice({
 });
 
 // Action creators are generated for each case reducer function
-export const { setUserData, setTokens, setLanguage, setTimezone, clearError } =
-  userSlice.actions;
+export const {
+  setUserData,
+  setTokens,
+  setLanguage,
+  setTimezone,
+  setAlarmEmails,
+  clearError,
+} = userSlice.actions;
 
 export default userSlice.reducer;
diff --git a/src/locales/en.json b/src/locales/en.json
index 3875ed0..9adb7b5 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -217,6 +217,9 @@
     "timeZoneBrowserDefault": "Detect time zone automatically",
     "timeZoneUpdateError": "Failed to update time zone",
     "notifications.empty": "Notifications settings coming soon",
+    "notifications.email": "Email",
+    "notifications.deliveryMethod": "Delivery method",
+    "alarmEmailsUpdateError": "Failed to update email notifications setting",
     "sync.empty": "Sync settings coming soon",
     "back": "Back to calendar"
   },
diff --git a/src/locales/fr.json b/src/locales/fr.json
index 785d9ab..17229e0 100644
--- a/src/locales/fr.json
+++ b/src/locales/fr.json
@@ -217,6 +217,9 @@
     "timeZoneBrowserDefault": "Détection automatique du fuseau horaire",
     "timeZoneUpdateError": "Échec de la mise à jour du fuseau horaire",
     "notifications.empty": "Paramètres de notifications à venir",
+    "notifications.email": "Email",
+    "notifications.deliveryMethod": "Mode de réception",
+    "alarmEmailsUpdateError": "Échec de la mise à jour du mode de notification par e-mail",
     "sync.empty": "Paramètres de synchronisation à venir",
     "back": "Retour au calendrier"
   },
diff --git a/src/locales/ru.json b/src/locales/ru.json
index 9ee5aa8..bcc2b7c 100644
--- a/src/locales/ru.json
+++ b/src/locales/ru.json
@@ -217,6 +217,9 @@
     "timeZoneBrowserDefault": "Определять часовой пояс автоматически",
     "timeZoneUpdateError": "Не удалось обновить часовой пояс",
     "notifications.empty": "Настройки уведомлений скоро появятся",
+    "notifications.email": "Email",
+    "notifications.deliveryMethod": "Способ доставки",
+    "alarmEmailsUpdateError": "Не удалось обновить настройки уведомлений по email",
     "sync.empty": "Настройки синхронизации скоро появятся",
     "back": "Вернуться к календарю"
   },
diff --git a/src/locales/vi.json b/src/locales/vi.json
index 2ac32f9..30af6a8 100644
--- a/src/locales/vi.json
+++ b/src/locales/vi.json
@@ -217,6 +217,9 @@
     "timeZoneBrowserDefault": "Tự động phát hiện múi giờ",
     "timeZoneUpdateError": "Không cập nhật được múi giờ",
     "notifications.empty": "Cài đặt thông báo sắp có",
+    "notifications.email": "Email",
+    "notifications.deliveryMethod": "Phương thức gửi",
+    "alarmEmailsUpdateError": "Cập nhật cài đặt thông báo email thất bại",
     "sync.empty": "Cài đặt đồng bộ sắp có",
     "back": "Quay lại lịch"
   },