diff --git a/src/frontend/apps/desk/src/features/mail-domains/api/useCreateMailbox.tsx b/src/frontend/apps/desk/src/features/mail-domains/api/useCreateMailbox.tsx
index 967ba16..86a19a2 100644
--- a/src/frontend/apps/desk/src/features/mail-domains/api/useCreateMailbox.tsx
+++ b/src/frontend/apps/desk/src/features/mail-domains/api/useCreateMailbox.tsx
@@ -13,7 +13,6 @@ export interface CreateMailboxParams {
   last_name: string;
   local_part: string;
   secondary_email: string;
-  phone_number: string;
   mailDomainSlug: string;
 }
 
diff --git a/src/frontend/apps/desk/src/features/mail-domains/components/forms/CreateMailboxForm.tsx b/src/frontend/apps/desk/src/features/mail-domains/components/forms/CreateMailboxForm.tsx
index 8f3cbdf..e2736d8 100644
--- a/src/frontend/apps/desk/src/features/mail-domains/components/forms/CreateMailboxForm.tsx
+++ b/src/frontend/apps/desk/src/features/mail-domains/components/forms/CreateMailboxForm.tsx
@@ -31,7 +31,6 @@ const createMailboxValidationSchema = z.object({
   last_name: z.string().min(1),
   local_part: z.string().min(1),
   secondary_email: z.string().min(1),
-  phone_number: z.string().min(1),
 });
 
 export const CreateMailboxForm = ({
@@ -52,7 +51,6 @@ export const CreateMailboxForm = ({
       last_name: '',
       local_part: '',
       secondary_email: '',
-      phone_number: '',
     },
     mode: 'onChange',
     reValidateMode: 'onChange',
@@ -250,26 +248,6 @@ const Form = ({
             )}
           />
         </Box>
-
-        <Box $margin={{ horizontal: 'none' }}>
-          <Controller
-            control={methods.control}
-            name="phone_number"
-            render={({ fieldState }) => (
-              <Input
-                aria-invalid={!!fieldState.error}
-                label={t('Phone number')}
-                state={fieldState.error ? 'error' : 'default'}
-                text={
-                  fieldState.error
-                    ? t('Please enter your phone number')
-                    : undefined
-                }
-                {...methods.register('phone_number')}
-              />
-            )}
-          />
-        </Box>
       </Box>
     </form>
   );
diff --git a/src/frontend/apps/desk/src/i18n/translations.json b/src/frontend/apps/desk/src/i18n/translations.json
index 7c47049..6b57c5d 100644
--- a/src/frontend/apps/desk/src/i18n/translations.json
+++ b/src/frontend/apps/desk/src/i18n/translations.json
@@ -97,11 +97,9 @@
       "Ouch !": "Ouch !",
       "Owner": "Propriétaire",
       "Personal data and cookies": "Données personnelles et cookies",
-      "Phone number": "Numéro de téléphone",
       "Please enter the first part of the email address, without including \"@\" in it": "Veuillez entrer la première partie de l'adresse e-mail, sans y inclure \"@\"",
       "Please enter your first name": "Veuillez saisir votre prénom",
       "Please enter your last name": "Veuillez saisir votre nom",
-      "Please enter your phone number": "Veuillez indiquer votre numéro de téléphone",
       "Please enter your secondary email address": "Veuillez saisir votre adresse e-mail secondaire",
       "Publication Director": "Directeur de la publication",
       "Publisher": "Éditeur",
diff --git a/src/frontend/apps/e2e/__tests__/app-desk/mail-domain-create-mailbox.spec.ts b/src/frontend/apps/e2e/__tests__/app-desk/mail-domain-create-mailbox.spec.ts
index d44ff33..c6e507a 100644
--- a/src/frontend/apps/e2e/__tests__/app-desk/mail-domain-create-mailbox.spec.ts
+++ b/src/frontend/apps/e2e/__tests__/app-desk/mail-domain-create-mailbox.spec.ts
@@ -144,8 +144,7 @@ test.describe('Mail domain create mailbox', () => {
             payload.first_name === 'John' &&
             payload.last_name === 'Doe' &&
             payload.local_part === 'john.doe' &&
-            payload.secondary_email === 'john.doe@mail.com' &&
-            payload.phone_number === '003371020304050';
+            payload.secondary_email === 'john.doe@mail.com';
         }
       }
     });
@@ -173,7 +172,6 @@ test.describe('Mail domain create mailbox', () => {
     await page.getByLabel('Main email address').fill('john.doe');
     await expect(page.locator('span').getByText('@domain.fr')).toBeVisible();
     await page.getByLabel('Secondary email address').fill('john.doe@mail.com');
-    await page.getByLabel('Phone number').fill('003371020304050');
 
     await page.getByRole('button', { name: 'Submit' }).click();
 
@@ -240,14 +238,13 @@ test.describe('Mail domain create mailbox', () => {
     };
 
     let isCreateMailboxRequestSent = false;
-    page.on('request', (request) => {
-      if (
-        request.url().includes('/mail-domains/domainfr/mailboxes/') &&
-        request.method() === 'POST'
-      ) {
-        isCreateMailboxRequestSent = true;
-      }
-    });
+    page.on(
+      'request',
+      (request) =>
+        (isCreateMailboxRequestSent =
+          request.url().includes('/mail-domains/domainfr/mailboxes/') &&
+          request.method() === 'POST'),
+    );
 
     await interceptApiCalls();
 
@@ -269,9 +266,6 @@ test.describe('Mail domain create mailbox', () => {
     await expect(
       page.getByText('Please enter your secondary email address'),
     ).toBeVisible();
-    await expect(
-      page.getByText('Please enter your phone number'),
-    ).toBeVisible();
 
     expect(isCreateMailboxRequestSent).toBeFalsy();
   });