diff --git a/packages/client/package.json b/packages/client/package.json
index e2e04a09..437cb44c 100644
--- a/packages/client/package.json
+++ b/packages/client/package.json
@@ -61,11 +61,22 @@
       "no-restricted-imports": [
         "error",
         {
-          "name": "axios",
-          "importNames": [
-            "default"
-          ],
-          "message": "Please use `http`, the axios client configured in the request utils (src/utils/request)."
+          "paths": [
+            {
+              "name": "axios",
+              "importNames": [
+                "default"
+              ],
+              "message": "Please use `http`, the axios client configured in the request utils (src/utils/request)."
+            },
+            {
+              "name": "react-hook-form",
+              "importNames": [
+                "useForm"
+              ],
+              "message": "Use our custom `useForm` hook instead which relies on react-hook-form (src/modules/common/hooks)."
+            }
+          ]
         }
       ],
       "@typescript-eslint/no-use-before-define": "off"
diff --git a/packages/client/src/modules/administration/Games/Game/GameInfo.tsx b/packages/client/src/modules/administration/Games/Game/GameInfo.tsx
index 3da78aae..2f2216e0 100644
--- a/packages/client/src/modules/administration/Games/Game/GameInfo.tsx
+++ b/packages/client/src/modules/administration/Games/Game/GameInfo.tsx
@@ -1,5 +1,5 @@
 import { Box, TextField, Grid, Button, Typography } from "@mui/material";
-import { useForm, Controller } from "react-hook-form";
+import { Controller } from "react-hook-form";
 import { useMutation, useQuery, useQueryClient } from "react-query";
 import SaveIcon from "@mui/icons-material/Save";
 import { SuccessAlert, ErrorAlert } from "../../../alert";
@@ -8,6 +8,7 @@ import { LocalizationProvider } from "@mui/x-date-pickers/LocalizationProvider";
 import { DateTimePicker } from "@mui/x-date-pickers/DateTimePicker";
 import { IGame } from "../../../../utils/types";
 import { http } from "../../../../utils/request";
+import { useForm } from "../../../common/hooks/useForm";
 
 export { GameInfo };
 
diff --git a/packages/client/src/modules/administration/Teachers/Settings.tsx b/packages/client/src/modules/administration/Teachers/Settings.tsx
index 2c97e86c..8b3f869b 100644
--- a/packages/client/src/modules/administration/Teachers/Settings.tsx
+++ b/packages/client/src/modules/administration/Teachers/Settings.tsx
@@ -1,7 +1,6 @@
 import { Box, Button, Container, Paper, Typography } from "@mui/material";
 import SaveIcon from "@mui/icons-material/Save";
 import { AxiosError } from "axios";
-import { useForm } from "react-hook-form";
 import { useMutation, useQueryClient } from "react-query";
 
 import { ErrorAlert, SuccessAlert } from "../../alert";
@@ -10,6 +9,7 @@ import { User } from "../../users/types";
 import { useAuth } from "../../auth/authProvider";
 import { getCountryByCode } from "../../signup/components/SelectCountry";
 import { http } from "../../../utils/request";
+import { useForm } from "../../common/hooks/useForm";
 
 export { Settings };
 
diff --git a/packages/client/src/modules/common/hooks/useForm.formatters.ts b/packages/client/src/modules/common/hooks/useForm.formatters.ts
new file mode 100644
index 00000000..255570bc
--- /dev/null
+++ b/packages/client/src/modules/common/hooks/useForm.formatters.ts
@@ -0,0 +1,31 @@
+import { FieldValues } from "react-hook-form";
+
+export { formatData };
+
+const FIELD_NAME_TO_FORMATTER: Record<
+  string,
+  {
+    formatter: (value: string) => string;
+  }
+> = {
+  email: {
+    formatter: formatEmail,
+  },
+};
+
+function formatEmail(email: string = ""): string {
+  return email.trim().toLowerCase();
+}
+
+function formatData<TFieldValues extends FieldValues = FieldValues>(
+  data: TFieldValues
+): TFieldValues {
+  return Object.fromEntries(
+    Object.entries(data).map(([fieldName, fieldValue]) => {
+      const formatter =
+        FIELD_NAME_TO_FORMATTER[fieldName]?.formatter ||
+        ((value: any) => value);
+      return [fieldName, formatter(fieldValue)];
+    })
+  ) as TFieldValues;
+}
diff --git a/packages/client/src/modules/common/hooks/useForm.ts b/packages/client/src/modules/common/hooks/useForm.ts
new file mode 100644
index 00000000..16c368cd
--- /dev/null
+++ b/packages/client/src/modules/common/hooks/useForm.ts
@@ -0,0 +1,45 @@
+import { useCallback, useMemo } from "react";
+import {
+  // eslint-disable-next-line no-restricted-imports
+  useForm as useFormLib,
+  FieldValues,
+  UseFormProps,
+  UseFormReturn,
+  UseFormHandleSubmit,
+  SubmitHandler,
+  SubmitErrorHandler,
+} from "react-hook-form";
+import { formatData } from "./useForm.formatters";
+
+export { useForm };
+
+const useForm = <
+  TFieldValues extends FieldValues = FieldValues,
+  TContext = any
+>(
+  props?: UseFormProps<TFieldValues, TContext>
+): UseFormReturn<TFieldValues, TContext> => {
+  const form = useFormLib(props);
+
+  const handleSubmit: UseFormHandleSubmit<TFieldValues> = useCallback(
+    (
+      onValid: SubmitHandler<TFieldValues>,
+      onInvalid?: SubmitErrorHandler<TFieldValues>
+    ) => {
+      return form.handleSubmit((data: TFieldValues, ...args) => {
+        onValid(formatData(data), ...args);
+      }, onInvalid);
+    },
+    [form]
+  );
+
+  const newForm = useMemo(
+    () => ({
+      ...form,
+      handleSubmit,
+    }),
+    [form, handleSubmit]
+  );
+
+  return newForm;
+};
diff --git a/packages/client/src/modules/magic-link/MagicLink.tsx b/packages/client/src/modules/magic-link/MagicLink.tsx
index 1cea24a7..44a80f3d 100644
--- a/packages/client/src/modules/magic-link/MagicLink.tsx
+++ b/packages/client/src/modules/magic-link/MagicLink.tsx
@@ -1,4 +1,4 @@
-import { useForm } from "react-hook-form";
+import { useForm } from "../common/hooks/useForm";
 import FormInput from "../common/components/FormInput";
 import { Link } from "react-router-dom";
 import { sendMagicLink } from "../users/services";
diff --git a/packages/client/src/modules/play/MyGames/MyGames.tsx b/packages/client/src/modules/play/MyGames/MyGames.tsx
index 76f9d662..f5eb7295 100644
--- a/packages/client/src/modules/play/MyGames/MyGames.tsx
+++ b/packages/client/src/modules/play/MyGames/MyGames.tsx
@@ -1,6 +1,6 @@
 import { trim } from "lodash";
 import { Box, CircularProgress, Grid, TextField } from "@mui/material";
-import { Controller, useForm } from "react-hook-form";
+import { Controller } from "react-hook-form";
 import { useMutation, useQuery, useQueryClient } from "react-query";
 import { ErrorAlert } from "../../alert";
 import { PlayBox } from "../Components";
@@ -17,6 +17,7 @@ import { useTranslation } from "../../translations/useTranslation";
 import { Typography } from "../../common/components/Typography";
 import { useAlerts } from "../../alert/AlertProvider";
 import { Button } from "../../common/components/Button";
+import { useForm } from "../../common/hooks/useForm";
 
 export { MyGames };
 
diff --git a/packages/client/src/modules/play/Personalization/PersonalizationForm.tsx b/packages/client/src/modules/play/Personalization/PersonalizationForm.tsx
index 41704958..a7f2089a 100644
--- a/packages/client/src/modules/play/Personalization/PersonalizationForm.tsx
+++ b/packages/client/src/modules/play/Personalization/PersonalizationForm.tsx
@@ -3,7 +3,7 @@ import { Button, Grid, Tooltip, Typography } from "@mui/material";
 import { CustomContainer } from "./styles/personalization";
 import { BackArrow, BackArrowWithValidation } from "./common/BackArrow";
 import { QuestionLine, QuestionText } from "./styles/form";
-import { useForm } from "react-hook-form";
+import { useForm } from "../../common/hooks/useForm";
 import { PersoFormInputList, PersoFormNumberInput } from "./common/FormInputs";
 import {
   formSections,
diff --git a/packages/client/src/modules/signup/components/Form/Form.tsx b/packages/client/src/modules/signup/components/Form/Form.tsx
index 95ebf02e..9f5b4d07 100644
--- a/packages/client/src/modules/signup/components/Form/Form.tsx
+++ b/packages/client/src/modules/signup/components/Form/Form.tsx
@@ -1,5 +1,5 @@
 import FormInput from "../../../common/components/FormInput";
-import { useForm } from "react-hook-form";
+import { useForm } from "../../../common/hooks/useForm";
 import CheckboxWithText from "../CheckboxWithText";
 import { NewUser } from "../../../users/services";
 import { useMutation } from "react-query";
diff --git a/packages/server/src/modules/users/controllers/index.ts b/packages/server/src/modules/users/controllers/index.ts
index 786dcf80..1ae9af52 100644
--- a/packages/server/src/modules/users/controllers/index.ts
+++ b/packages/server/src/modules/users/controllers/index.ts
@@ -7,6 +7,7 @@ import { rolesServices } from "../../roles/services";
 import { services } from "../services";
 import { signInController } from "./signInController";
 import { getManyUsersController } from "./getManyUsersController";
+import { getEmailSchema } from "../../utils/schemaParser";
 
 const crudController = {
   getDocumentController,
@@ -27,7 +28,7 @@ export { controllers };
 async function signUpController(request: Request, response: Response) {
   const bodySchema = z.object({
     country: z.string(),
-    email: z.string(),
+    email: getEmailSchema(),
     lastName: z.string(),
     firstName: z.string(),
   });
@@ -57,7 +58,10 @@ async function getLoggedUserController(request: Request, response: Response) {
 }
 
 async function sendMagicLinkController(request: Request, response: Response) {
-  const { email } = request.body;
+  const bodySchema = z.object({
+    email: getEmailSchema(),
+  });
+  const { email } = bodySchema.parse(request.body);
   await services.sendMagicLink(email);
   response
     .status(200)
@@ -76,7 +80,7 @@ async function getTeamForPlayer(request: Request, response: Response) {
 
 const bodySchemaUpdate = z.object({
   country: z.string().optional(),
-  email: z.string().optional(),
+  email: getEmailSchema(),
   lastName: z.string().optional(),
   firstName: z.string().optional(),
   roleId: z.number().optional(),
diff --git a/packages/server/src/modules/utils/schemaParser.ts b/packages/server/src/modules/utils/schemaParser.ts
new file mode 100644
index 00000000..938fed85
--- /dev/null
+++ b/packages/server/src/modules/utils/schemaParser.ts
@@ -0,0 +1,9 @@
+import { z } from "zod";
+
+export { getEmailSchema };
+
+const getEmailSchema = () =>
+  z
+    .string()
+    .email()
+    .transform((email) => (email || "").trim().toLowerCase());