diff --git a/CHANGELOG.md b/CHANGELOG.md
index 38910d9..0dc5ccd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ and this project adheres to
 
 ## [Unreleased]
 
+- ✨(front) add modal update mailboxes #954
+
 ### Added
 
 - ✨(api) update mailboxes #934
diff --git a/src/frontend/apps/desk/src/features/mail-domains/domains/components/panel/PanelActions.tsx b/src/frontend/apps/desk/src/features/mail-domains/domains/components/panel/PanelActions.tsx
index 2edb32e..5706b88 100644
--- a/src/frontend/apps/desk/src/features/mail-domains/domains/components/panel/PanelActions.tsx
+++ b/src/frontend/apps/desk/src/features/mail-domains/domains/components/panel/PanelActions.tsx
@@ -24,6 +24,7 @@ export const PanelActions = () => {
       $css={`
         & button {
           padding: 0;
+          justify-content: start;
 
           svg {
             padding: 0.1rem;
diff --git a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/api/index.tsx b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/api/index.tsx
index f394a92..60e5650 100644
--- a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/api/index.tsx
+++ b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/api/index.tsx
@@ -1,2 +1,3 @@
 export * from './useCreateMailbox';
 export * from './useMailboxes';
+export * from './useUpdateMailbox';
diff --git a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/api/useUpdateMailbox.tsx b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/api/useUpdateMailbox.tsx
new file mode 100644
index 0000000..d259f02
--- /dev/null
+++ b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/api/useUpdateMailbox.tsx
@@ -0,0 +1,69 @@
+import {
+  UseMutationOptions,
+  useMutation,
+  useQueryClient,
+} from '@tanstack/react-query';
+
+import { APIError, errorCauses, fetchAPI } from '@/api';
+
+import { KEY_LIST_MAILBOX } from './useMailboxes';
+
+export interface UpdateMailboxParams {
+  first_name: string;
+  last_name: string;
+  secondary_email: string;
+  mailDomainSlug: string;
+}
+
+export const updateMailbox = async ({
+  mailDomainSlug,
+  mailboxId,
+  ...data
+}: UpdateMailboxParams & { mailboxId: string }): Promise<void> => {
+  const response = await fetchAPI(
+    `mail-domains/${mailDomainSlug}/mailboxes/${mailboxId}/`,
+    {
+      method: 'PATCH',
+      body: JSON.stringify(data),
+    },
+  );
+
+  if (!response.ok) {
+    const errorData = await errorCauses(response);
+    console.log('Error data:', errorData);
+    throw new APIError('Failed to update the mailbox', {
+      status: errorData.status,
+      cause: errorData.cause as string[],
+      data: errorData.data,
+    });
+  }
+};
+
+type UseUpdateMailboxParams = {
+  mailDomainSlug: string;
+  mailboxId: string;
+} & UseMutationOptions<void, APIError, UpdateMailboxParams>;
+
+export const useUpdateMailbox = (options: UseUpdateMailboxParams) => {
+  const queryClient = useQueryClient();
+  return useMutation<void, APIError, UpdateMailboxParams>({
+    mutationFn: (data) =>
+      updateMailbox({ ...data, mailboxId: options.mailboxId }),
+    onSuccess: (data, variables, context) => {
+      void queryClient.invalidateQueries({
+        queryKey: [
+          KEY_LIST_MAILBOX,
+          { mailDomainSlug: variables.mailDomainSlug },
+        ],
+      });
+      if (options?.onSuccess) {
+        options.onSuccess(data, variables, context);
+      }
+    },
+    onError: (error, variables, context) => {
+      if (options?.onError) {
+        options.onError(error, variables, context);
+      }
+    },
+  });
+};
diff --git a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/ModalUpdateMailbox.tsx b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/ModalUpdateMailbox.tsx
new file mode 100644
index 0000000..19964ac
--- /dev/null
+++ b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/ModalUpdateMailbox.tsx
@@ -0,0 +1,248 @@
+import { zodResolver } from '@hookform/resolvers/zod';
+import {
+  Button,
+  Loader,
+  ModalSize,
+  VariantType,
+  useToastProvider,
+} from '@openfun/cunningham-react';
+import React, { useEffect, useState } from 'react';
+import { Controller, FormProvider, useForm } from 'react-hook-form';
+import { useTranslation } from 'react-i18next';
+import { z } from 'zod';
+
+import { APIError } from '@/api/APIError';
+import { parseAPIError } from '@/api/parseAPIError';
+import {
+  Box,
+  HorizontalSeparator,
+  Input,
+  Text,
+  TextErrors,
+} from '@/components';
+import { CustomModal } from '@/components/modal/CustomModal';
+
+import { MailDomain } from '../../domains/types';
+import { useUpdateMailbox } from '../api/useUpdateMailbox';
+import { ViewMailbox } from '../types';
+
+const FORM_ID = 'form-update-mailbox';
+
+interface ModalUpdateMailboxProps {
+  isOpen: boolean;
+  onClose: () => void;
+  mailDomain: MailDomain;
+  mailbox: ViewMailbox;
+}
+
+export const ModalUpdateMailbox = ({
+  isOpen,
+  onClose,
+  mailDomain,
+  mailbox,
+}: ModalUpdateMailboxProps) => {
+  const { t } = useTranslation();
+  const { toast } = useToastProvider();
+  const [errorCauses, setErrorCauses] = useState<string[]>([]);
+  const [step] = useState(0);
+
+  const updateMailboxValidationSchema = z.object({
+    first_name: z.string().min(1, t('Please enter your first name')),
+    last_name: z.string().min(1, t('Please enter your last name')),
+    secondary_email: z.string().email(t('Please enter a valid email address')),
+  });
+
+  const methods = useForm({
+    resolver: zodResolver(updateMailboxValidationSchema),
+    defaultValues: {
+      first_name: mailbox?.first_name || '',
+      last_name: mailbox?.last_name || '',
+      secondary_email: mailbox?.secondary_email || '',
+    },
+    mode: 'onChange',
+  });
+
+  useEffect(() => {
+    if (mailbox && isOpen) {
+      methods.reset({
+        first_name: mailbox.first_name || '',
+        last_name: mailbox.last_name || '',
+        secondary_email: mailbox.secondary_email || '',
+      });
+    }
+  }, [mailbox, isOpen, methods]);
+
+  const { mutate: updateMailbox, isPending } = useUpdateMailbox({
+    mailDomainSlug: mailDomain.slug,
+    mailboxId: mailbox?.id || '',
+    onSuccess: () => {
+      toast(t('Mailbox updated!'), VariantType.SUCCESS, { duration: 4000 });
+      onClose();
+    },
+    onError: (error: APIError) => {
+      const causes =
+        parseAPIError({
+          error,
+          errorParams: [
+            [
+              ['Invalid format'],
+              t('Invalid format for the email address.'),
+              undefined,
+            ],
+          ],
+          serverErrorParams: [
+            t(
+              'An error occurred while updating the mailbox. Please try again.',
+            ),
+            undefined,
+          ],
+        }) || [];
+      if (causes.length > 0) {
+        causes.forEach((cause) => {
+          toast(cause, VariantType.ERROR, { duration: 4000 });
+        });
+      } else {
+        toast(t('Mailbox update failed!'), VariantType.ERROR, {
+          duration: 4000,
+        });
+      }
+      setErrorCauses(causes);
+    },
+  });
+
+  if (!mailbox) {
+    return null;
+  }
+
+  const onSubmitCallback = (event: React.FormEvent) => {
+    event.preventDefault();
+
+    if (!mailbox?.id) {
+      return;
+    }
+
+    void methods.handleSubmit((data) =>
+      updateMailbox({ ...data, mailDomainSlug: mailDomain.slug }),
+    )();
+  };
+
+  const steps = [
+    {
+      title: t('Update account'),
+      content: (
+        <FormProvider {...methods}>
+          {!!errorCauses.length && <TextErrors causes={errorCauses} />}
+          <form id={FORM_ID} onSubmit={onSubmitCallback}>
+            <Box $padding={{ top: 'sm', horizontal: 'md' }} $gap="4px">
+              <Text $size="md" $weight="bold">
+                {t('Personal informations')}
+              </Text>
+              <Text $theme="greyscale" $variation="600">
+                {t('Update the user information.')}
+              </Text>
+            </Box>
+            <Box $padding={{ horizontal: 'md' }}>
+              <Box $margin={{ top: 'base' }}>
+                <Controller
+                  name="first_name"
+                  control={methods.control}
+                  render={({ field, fieldState }) => (
+                    <Input
+                      {...field}
+                      label={t('First name')}
+                      placeholder={t('First name')}
+                      required
+                      error={fieldState.error?.message}
+                    />
+                  )}
+                />
+              </Box>
+              <Box $margin={{ top: 'base' }}>
+                <Controller
+                  name="last_name"
+                  control={methods.control}
+                  render={({ field, fieldState }) => (
+                    <Input
+                      {...field}
+                      label={t('Last name')}
+                      placeholder={t('Last name')}
+                      required
+                      error={fieldState.error?.message}
+                    />
+                  )}
+                />
+              </Box>
+              <Box $margin={{ top: 'base' }}>
+                <Controller
+                  name="secondary_email"
+                  control={methods.control}
+                  render={({ field, fieldState }) => (
+                    <Input
+                      {...field}
+                      label={t('Personal email address')}
+                      placeholder={t('john.appleseed@free.fr')}
+                      required
+                      error={fieldState.error?.message}
+                    />
+                  )}
+                />
+              </Box>
+            </Box>
+
+            <HorizontalSeparator $withPadding={true} />
+
+            <Box $padding={{ top: 'base', horizontal: 'md' }}>
+              <Text $size="md" $weight="bold">
+                {t('Email address')}
+              </Text>
+            </Box>
+            <Box $padding="md">
+              <Text>
+                {mailbox.local_part}@{mailDomain.name}
+              </Text>
+            </Box>
+          </form>
+        </FormProvider>
+      ),
+      leftAction: (
+        <Button color="secondary" onClick={onClose}>
+          {t('Cancel')}
+        </Button>
+      ),
+      rightAction: (
+        <Button
+          type="submit"
+          form={FORM_ID}
+          disabled={!methods.formState.isValid || isPending}
+        >
+          {t('Update')}
+        </Button>
+      ),
+    },
+  ];
+
+  return (
+    <div id="modal-update-mailbox">
+      <CustomModal
+        isOpen={isOpen}
+        hideCloseButton
+        step={step}
+        totalSteps={steps.length}
+        leftActions={steps[step].leftAction}
+        rightActions={steps[step].rightAction}
+        size={ModalSize.MEDIUM}
+        title={steps[step].title}
+        onClose={onClose}
+        closeOnEsc
+        closeOnClickOutside
+      >
+        {steps[step].content}
+        {isPending && (
+          <Box $align="center">
+            <Loader />
+          </Box>
+        )}
+      </CustomModal>
+    </div>
+  );
+};
diff --git a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/index.ts b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/index.ts
index 0e28135..bf9a2cc 100644
--- a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/index.ts
+++ b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/index.ts
@@ -1,3 +1,4 @@
 export * from './ModalCreateMailbox';
+export * from './ModalUpdateMailbox';
 export * from './MailBoxesView';
 export * from './panel';
diff --git a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/panel/MailBoxesListView.tsx b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/panel/MailBoxesListView.tsx
index b7417ca..4ff8d31 100644
--- a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/panel/MailBoxesListView.tsx
+++ b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/panel/MailBoxesListView.tsx
@@ -7,7 +7,7 @@ import { Box, Tag, Text, TextErrors } from '@/components';
 import { MailDomain } from '@/features/mail-domains/domains';
 import {
   MailDomainMailbox,
-  MailDomainMailboxStatus,
+  ViewMailbox,
 } from '@/features/mail-domains/mailboxes/types';
 
 import { useMailboxesInfinite } from '../../api/useMailboxesInfinite';
@@ -35,13 +35,6 @@ function formatSortModel(sortModel: SortModelItem) {
   return sortModel.sort === 'desc' ? `-${sortModel.field}` : sortModel.field;
 }
 
-export type ViewMailbox = {
-  name: string;
-  id: string;
-  email: string;
-  status: MailDomainMailboxStatus;
-};
-
 export function MailBoxesListView({
   mailDomain,
   querySearch,
@@ -76,9 +69,13 @@ export function MailBoxesListView({
     }
     return data.pages.flatMap((page) =>
       page.results.map((mailbox: MailDomainMailbox) => ({
-        email: `${mailbox.local_part}@${mailDomain.name}`,
-        name: `${mailbox.first_name} ${mailbox.last_name}`,
         id: mailbox.id,
+        email: `${mailbox.local_part}@${mailDomain.name}`,
+        first_name: mailbox.first_name,
+        last_name: mailbox.last_name,
+        name: `${mailbox.first_name} ${mailbox.last_name}`,
+        local_part: mailbox.local_part,
+        secondary_email: mailbox.secondary_email,
         status: mailbox.status,
         mailbox,
       })),
@@ -86,12 +83,15 @@ export function MailBoxesListView({
   }, [data, mailDomain]);
 
   const filteredMailboxes = useMemo(() => {
-    if (!querySearch) {
+    if (typeof querySearch !== 'string' || !querySearch) {
       return mailboxes;
     }
+    // eslint-disable-next-line @typescript-eslint/no-unsafe-call
     const lowerCaseSearch = querySearch.toLowerCase();
-    return mailboxes.filter((mailbox) =>
-      mailbox.email.toLowerCase().includes(lowerCaseSearch),
+    return mailboxes.filter(
+      (mailbox) =>
+        typeof mailbox.email === 'string' &&
+        mailbox.email.toLowerCase().includes(lowerCaseSearch),
     );
   }, [querySearch, mailboxes]);
 
@@ -145,7 +145,7 @@ export function MailBoxesListView({
                     $theme="greyscale"
                     $css="text-transform: capitalize;"
                   >
-                    {row.name}
+                    {`${row.first_name} ${row.last_name}`}
                   </Text>
                 ),
               },
diff --git a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/panel/PanelActions.tsx b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/panel/PanelActions.tsx
index d0c2ccc..9be0495 100644
--- a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/panel/PanelActions.tsx
+++ b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/components/panel/PanelActions.tsx
@@ -11,7 +11,10 @@ import { useTranslation } from 'react-i18next';
 
 import { Box, DropButton, IconOptions, Text } from '@/components';
 import { MailDomain } from '@/features/mail-domains/domains';
-import { ViewMailbox } from '@/features/mail-domains/mailboxes';
+import {
+  ModalUpdateMailbox,
+  ViewMailbox,
+} from '@/features/mail-domains/mailboxes';
 
 import {
   useResetPassword,
@@ -28,6 +31,7 @@ export const PanelActions = ({ mailDomain, mailbox }: PanelActionsProps) => {
   const [isDropOpen, setIsDropOpen] = useState(false);
   const isEnabled = mailbox.status === 'enabled';
   const disableModal = useModal();
+  const updateModal = useModal();
   const { toast } = useToastProvider();
 
   const { mutate: updateMailboxStatus } = useUpdateMailboxStatus();
@@ -84,7 +88,7 @@ export const PanelActions = ({ mailDomain, mailbox }: PanelActionsProps) => {
       >
         <Box>
           <Button
-            aria-label={t('Open the modal to update the role of this access')}
+            aria-label={t('Open a modal to enable or disable mailbox')}
             onClick={() => {
               setIsDropOpen(false);
               if (isEnabled) {
@@ -93,7 +97,6 @@ export const PanelActions = ({ mailDomain, mailbox }: PanelActionsProps) => {
                 handleUpdateMailboxStatus();
               }
             }}
-            fullWidth
             color="primary-text"
             icon={
               <span className="material-icons" aria-hidden="true">
@@ -106,7 +109,29 @@ export const PanelActions = ({ mailDomain, mailbox }: PanelActionsProps) => {
             </Text>
           </Button>
           <Button
-            aria-label={t('Open the modal to update the role of this access')}
+            aria-label={t('Open the modal to update mailbox attributes')}
+            onClick={() => {
+              setIsDropOpen(false);
+              if (isEnabled) {
+                updateModal.open();
+              } else {
+                handleUpdateMailboxStatus();
+              }
+            }}
+            color="primary-text"
+            disabled={!isEnabled}
+            icon={
+              <span className="material-icons" aria-hidden="true">
+                {isEnabled ? 'settings' : 'block'}
+              </span>
+            }
+          >
+            <Text $theme={isEnabled ? 'primary' : 'greyscale'}>
+              {t('Configure mailbox')}
+            </Text>
+          </Button>
+          <Button
+            aria-label={t('Reset password for this mailbox')}
             onClick={() => {
               setIsDropOpen(false);
               handleResetMailboxPassword();
@@ -120,11 +145,17 @@ export const PanelActions = ({ mailDomain, mailbox }: PanelActionsProps) => {
             }
           >
             <Text $theme={isEnabled ? 'primary' : 'greyscale'}>
-              {isEnabled ? t('Reset password') : t('Reset password')}
+              {t('Reset password')}
             </Text>
           </Button>
         </Box>
       </DropButton>
+      <ModalUpdateMailbox
+        isOpen={updateModal.isOpen}
+        onClose={updateModal.close}
+        mailDomain={mailDomain}
+        mailbox={mailbox}
+      />
       <Modal
         isOpen={disableModal.isOpen}
         onClose={disableModal.close}
diff --git a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/types.ts b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/types.ts
index 14c1bd9..19afcaf 100644
--- a/src/frontend/apps/desk/src/features/mail-domains/mailboxes/types.ts
+++ b/src/frontend/apps/desk/src/features/mail-domains/mailboxes/types.ts
@@ -14,3 +14,13 @@ export type MailDomainMailboxStatus =
   | 'disabled'
   | 'pending'
   | 'failed';
+
+export interface ViewMailbox {
+  id: string;
+  email: string;
+  first_name: string;
+  last_name: string;
+  local_part: string;
+  secondary_email: string;
+  status: MailDomainMailboxStatus;
+}
diff --git a/src/frontend/apps/e2e/__tests__/app-desk/mail-domain.spec.ts b/src/frontend/apps/e2e/__tests__/app-desk/mail-domain.spec.ts
index 7d7408f..11b4f90 100644
--- a/src/frontend/apps/e2e/__tests__/app-desk/mail-domain.spec.ts
+++ b/src/frontend/apps/e2e/__tests__/app-desk/mail-domain.spec.ts
@@ -251,7 +251,9 @@ test.describe('Mail domain', () => {
         ).toBeVisible();
 
         // Click disable in modal
-        await page.getByRole('button', { name: 'Disable' }).click();
+        await page
+          .getByRole('button', { name: 'Disable', exact: true })
+          .click();
 
         // Verify mailbox status shows as disabled
         await expect(