diff --git a/api/src/rpc/router.ts b/api/src/rpc/router.ts
index 22cbf0bc..ae1d2803 100644
--- a/api/src/rpc/router.ts
+++ b/api/src/rpc/router.ts
@@ -470,7 +470,6 @@ export function createRouter(params: {
                     currentUser: user
                 })
             ),
-        "getAllowedEmailRegexp": loggedProcedure.query(() => coreContext.userApi.getAllowedEmailRegexp()),
         "getAllOrganizations": loggedProcedure.query(() => dbApi.agent.getAllOrganizations()),
         "updateEmail": loggedProcedure
             .input(
diff --git a/web/src/core/adapter/sillApi.ts b/web/src/core/adapter/sillApi.ts
index 5312de41..f6aeb20c 100644
--- a/web/src/core/adapter/sillApi.ts
+++ b/web/src/core/adapter/sillApi.ts
@@ -135,9 +135,6 @@ export function createSillApi(params: {
 
             return out;
         },
-        "getAllowedEmailRegexp": memoize(() => trpcClient.getAllowedEmailRegexp.query(), {
-            "promise": true
-        }),
         "getAllOrganizations": memoize(() => trpcClient.getAllOrganizations.query(), {
             "promise": true
         }),
diff --git a/web/src/core/adapter/sillApiMock.ts b/web/src/core/adapter/sillApiMock.ts
index 77549613..3faaedea 100644
--- a/web/src/core/adapter/sillApiMock.ts
+++ b/web/src/core/adapter/sillApiMock.ts
@@ -211,7 +211,6 @@ export const sillApi: SillApi = {
     "updateEmail": async ({ newEmail }) => {
         console.log(`Update email ${newEmail}`);
     },
-    "getAllowedEmailRegexp": memoize(async () => "/gouv.fr$/", { "promise": true }),
     "getAllOrganizations": memoize(async () => ["DINUM", "CNRS", "ESR"], {
         "promise": true
     }),
diff --git a/web/src/core/ports/SillApi.ts b/web/src/core/ports/SillApi.ts
index 2c7ba052..b3b55b3e 100644
--- a/web/src/core/ports/SillApi.ts
+++ b/web/src/core/ports/SillApi.ts
@@ -73,10 +73,6 @@ export type SillApi = {
         params: TrpcRouterInput["updateEmail"]
     ) => Promise<TrpcRouterOutput["updateEmail"]>;
 
-    getAllowedEmailRegexp: {
-        (): Promise<TrpcRouterOutput["getAllowedEmailRegexp"]>;
-        clear: () => void;
-    };
     getAllOrganizations: {
         (params: TrpcRouterInput["getAllOrganizations"]): Promise<
             TrpcRouterOutput["getAllOrganizations"]
diff --git a/web/src/core/usecases/userAccountManagement/state.ts b/web/src/core/usecases/userAccountManagement/state.ts
index c3fa7508..0e4a5da7 100644
--- a/web/src/core/usecases/userAccountManagement/state.ts
+++ b/web/src/core/usecases/userAccountManagement/state.ts
@@ -15,7 +15,6 @@ namespace State {
     export type Ready = {
         stateDescription: "ready";
         accountManagementUrl: string | undefined;
-        allowedEmailRegexpStr: string;
         allOrganizations: string[];
         organization: {
             value: string | null;
@@ -63,7 +62,6 @@ export const { reducer, actions } = createUsecaseActions({
             }: {
                 payload: {
                     accountManagementUrl: string | undefined;
-                    allowedEmailRegexpStr: string;
                     organization: string | null;
                     email: string;
                     allOrganizations: string[];
@@ -74,7 +72,6 @@ export const { reducer, actions } = createUsecaseActions({
         ) => {
             const {
                 accountManagementUrl,
-                allowedEmailRegexpStr,
                 organization,
                 email,
                 allOrganizations,
@@ -85,7 +82,6 @@ export const { reducer, actions } = createUsecaseActions({
             return {
                 "stateDescription": "ready",
                 accountManagementUrl,
-                allowedEmailRegexpStr,
                 allOrganizations,
                 "organization": {
                     "value": organization,
diff --git a/web/src/core/usecases/userAccountManagement/thunks.ts b/web/src/core/usecases/userAccountManagement/thunks.ts
index 89059e89..74d7c2ca 100644
--- a/web/src/core/usecases/userAccountManagement/thunks.ts
+++ b/web/src/core/usecases/userAccountManagement/thunks.ts
@@ -23,14 +23,8 @@ export const thunks = {
 
             const user = await getUser();
 
-            const [
-                { keycloakParams },
-                allowedEmailRegexpStr,
-                allOrganizations,
-                { agent }
-            ] = await Promise.all([
+            const [{ keycloakParams }, allOrganizations, { agent }] = await Promise.all([
                 sillApi.getOidcParams(),
-                sillApi.getAllowedEmailRegexp(),
                 sillApi.getAllOrganizations(),
                 sillApi.getAgent({ "email": user.email })
             ]);
@@ -39,7 +33,6 @@ export const thunks = {
 
             dispatch(
                 actions.initialized({
-                    allowedEmailRegexpStr,
                     "email": user.email,
                     "organization": organization,
                     "accountManagementUrl":
diff --git a/web/src/ui/pages/account/Account.tsx b/web/src/ui/pages/account/Account.tsx
index 242b8c12..b4801fa6 100644
--- a/web/src/ui/pages/account/Account.tsx
+++ b/web/src/ui/pages/account/Account.tsx
@@ -7,7 +7,6 @@ import { Equals } from "tsafe";
 import { declareComponentKeys } from "i18nifty";
 import { useCore, useCoreState } from "core";
 import { Input } from "@codegouvfr/react-dsfr/Input";
-import { z } from "zod";
 import { Button } from "@codegouvfr/react-dsfr/Button";
 import { OrganizationField } from "../../shared/PromptForOrganization";
 import type { PageRoute } from "./route";
@@ -55,40 +54,19 @@ function AccountReady(props: { className?: string }) {
 
     const { t } = useTranslation({ Account });
 
-    const {
-        email,
-        organization,
-        aboutAndIsPublic,
-        doSupportAccountManagement,
-        allowedEmailRegExp
-    } = (function useClosure() {
-        const state = useCoreState("userAccountManagement", "main");
+    const { email, aboutAndIsPublic, doSupportAccountManagement } =
+        (function useClosure() {
+            const state = useCoreState("userAccountManagement", "main");
 
-        assert(state !== undefined);
+            assert(state !== undefined);
 
-        const { allowedEmailRegexpStr, ...rest } = state;
-
-        const allowedEmailRegExp = useMemo(
-            () => new RegExp(allowedEmailRegexpStr),
-            [allowedEmailRegexpStr]
-        );
-
-        return {
-            ...rest,
-            allowedEmailRegExp
-        };
-    })();
+            return state;
+        })();
 
     const { isDark } = useIsDark();
 
     const { userAccountManagement } = useCore().functions;
 
-    const [emailInputValue, setEmailInputValue] = useState(email.value);
-
-    const [organizationInputValue, setOrganizationInputValue] = useState(
-        organization.value ?? null
-    );
-
     const evtAboutInputValue = useConst(() => Evt.create(aboutAndIsPublic.about));
 
     /* prettier-ignore */
@@ -116,22 +94,6 @@ function AccountReady(props: { className?: string }) {
         evtAboutInputValue.state = text;
     }, []);
 
-    const emailInputValueErrorMessage = (() => {
-        try {
-            z.string().email().parse(emailInputValue);
-        } catch {
-            return t("not a valid email");
-        }
-
-        if (!allowedEmailRegExp.test(emailInputValue)) {
-            return t("email domain not allowed", {
-                "domain": emailInputValue.split("@")[1]
-            });
-        }
-
-        return undefined;
-    })();
-
     const { classes, cx, css } = useStyles();
 
     return (
@@ -142,21 +104,11 @@ function AccountReady(props: { className?: string }) {
                 <Input
                     label={t("mail")}
                     nativeInputProps={{
-                        "onChange": event => setEmailInputValue(event.target.value),
-                        "value": emailInputValue,
+                        "value": email.value,
                         "name": "email",
                         "type": "email",
-                        "id": "email",
-                        "onKeyDown": event => {
-                            if (event.key === "Escape") {
-                                setEmailInputValue(email.value);
-                            }
-                        }
+                        "id": "email"
                     }}
-                    state={
-                        emailInputValueErrorMessage === undefined ? undefined : "error"
-                    }
-                    stateRelatedMessage={emailInputValueErrorMessage}
                     disabled={true}
                 />