From 26dfe10da6c9bb24a9739f7ebbd8b6227a48c09d Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 6 Feb 2026 08:26:22 +0000
Subject: [PATCH 1/5] Initial plan


From f852e6e6b3026b7115399eec07c8c3a4ee8e8b56 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 6 Feb 2026 08:29:32 +0000
Subject: [PATCH 2/5] Add backend API for mailbox administration (list, update,
 delete)

Co-authored-by: printminion-co <145785698+printminion-co@users.noreply.github.com>
---
 appinfo/routes.php                        |  15 ++
 lib/Controller/MailboxAdminController.php | 124 +++++++++++++
 lib/Service/MailboxAdminService.php       | 201 ++++++++++++++++++++++
 3 files changed, 340 insertions(+)
 create mode 100644 lib/Controller/MailboxAdminController.php
 create mode 100644 lib/Service/MailboxAdminService.php

diff --git a/appinfo/routes.php b/appinfo/routes.php
index addac33608..e89f5c461a 100644
--- a/appinfo/routes.php
+++ b/appinfo/routes.php
@@ -530,6 +530,21 @@
 			'url' => '/api/action-step/{actionId}/steps',
 			'verb' => 'GET'
 		],
+		[
+			'name' => 'mailboxAdmin#listMailboxes',
+			'url' => '/api/admin/mailboxes',
+			'verb' => 'GET',
+		],
+		[
+			'name' => 'mailboxAdmin#updateMailbox',
+			'url' => '/api/admin/mailboxes/{userId}',
+			'verb' => 'PATCH',
+		],
+		[
+			'name' => 'mailboxAdmin#deleteMailbox',
+			'url' => '/api/admin/mailboxes/{userId}',
+			'verb' => 'DELETE',
+		],
 	],
 	'resources' => [
 		'accounts' => ['url' => '/api/accounts'],
diff --git a/lib/Controller/MailboxAdminController.php b/lib/Controller/MailboxAdminController.php
new file mode 100644
index 0000000000..80a7c160e5
--- /dev/null
+++ b/lib/Controller/MailboxAdminController.php
@@ -0,0 +1,124 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2026 IONOS SE
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Mail\Controller;
+
+use OCA\Mail\AppInfo\Application;
+use OCA\Mail\Service\MailboxAdminService;
+use OCP\AppFramework\Controller;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\JSONResponse;
+use OCP\IRequest;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Controller for mailbox administration endpoints
+ */
+class MailboxAdminController extends Controller {
+	public function __construct(
+		IRequest $request,
+		private MailboxAdminService $mailboxAdminService,
+		private LoggerInterface $logger,
+	) {
+		parent::__construct(Application::APP_ID, $request);
+	}
+
+	/**
+	 * List all IONOS mailboxes with linked users
+	 *
+	 * @return JSONResponse
+	 * @NoCSRFRequired
+	 * @AuthorizedAdminSetting(settings=OCA\Mail\Settings\AdminSettings)
+	 */
+	public function listMailboxes(): JSONResponse {
+		try {
+			$mailboxes = $this->mailboxAdminService->listAllMailboxes();
+			return new JSONResponse([
+				'mailboxes' => $mailboxes,
+			]);
+		} catch (\Exception $e) {
+			$this->logger->error('Failed to list mailboxes', [
+				'exception' => $e,
+			]);
+			return new JSONResponse([
+				'error' => 'Failed to list mailboxes: ' . $e->getMessage(),
+			], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	/**
+	 * Update a mailbox email address (change localpart)
+	 *
+	 * @param string $userId The Nextcloud user ID
+	 * @param string $newLocalpart The new local part of the email (before @)
+	 * @return JSONResponse
+	 * @NoCSRFRequired
+	 * @AuthorizedAdminSetting(settings=OCA\Mail\Settings\AdminSettings)
+	 */
+	public function updateMailbox(string $userId, string $newLocalpart): JSONResponse {
+		try {
+			$result = $this->mailboxAdminService->updateMailboxEmail($userId, $newLocalpart);
+			
+			if ($result['success']) {
+				return new JSONResponse([
+					'success' => true,
+					'email' => $result['email'],
+					'message' => 'Mailbox updated successfully',
+				]);
+			} else {
+				return new JSONResponse([
+					'success' => false,
+					'error' => $result['error'],
+				], Http::STATUS_BAD_REQUEST);
+			}
+		} catch (\Exception $e) {
+			$this->logger->error('Failed to update mailbox', [
+				'userId' => $userId,
+				'exception' => $e,
+			]);
+			return new JSONResponse([
+				'error' => 'Failed to update mailbox: ' . $e->getMessage(),
+			], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	/**
+	 * Delete a mailbox
+	 *
+	 * @param string $userId The Nextcloud user ID
+	 * @return JSONResponse
+	 * @NoCSRFRequired
+	 * @AuthorizedAdminSetting(settings=OCA\Mail\Settings\AdminSettings)
+	 */
+	public function deleteMailbox(string $userId): JSONResponse {
+		try {
+			$success = $this->mailboxAdminService->deleteMailbox($userId);
+			
+			if ($success) {
+				return new JSONResponse([
+					'success' => true,
+					'message' => 'Mailbox deleted successfully',
+				]);
+			} else {
+				return new JSONResponse([
+					'success' => false,
+					'error' => 'Failed to delete mailbox',
+				], Http::STATUS_INTERNAL_SERVER_ERROR);
+			}
+		} catch (\Exception $e) {
+			$this->logger->error('Failed to delete mailbox', [
+				'userId' => $userId,
+				'exception' => $e,
+			]);
+			return new JSONResponse([
+				'error' => 'Failed to delete mailbox: ' . $e->getMessage(),
+			], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+}
diff --git a/lib/Service/MailboxAdminService.php b/lib/Service/MailboxAdminService.php
new file mode 100644
index 0000000000..75c7eeec3b
--- /dev/null
+++ b/lib/Service/MailboxAdminService.php
@@ -0,0 +1,201 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2026 IONOS SE
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Mail\Service;
+
+use OCA\Mail\Db\MailAccountMapper;
+use OCA\Mail\Provider\MailAccountProvider\Implementations\Ionos\IonosProviderFacade;
+use OCA\Mail\Provider\MailAccountProvider\Implementations\Ionos\Service\IonosConfigService;
+use OCP\IUserManager;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service for managing mailboxes in the admin interface
+ */
+class MailboxAdminService {
+	public function __construct(
+		private IonosProviderFacade $ionosFacade,
+		private IonosConfigService $configService,
+		private IUserManager $userManager,
+		private MailAccountMapper $mailAccountMapper,
+		private LoggerInterface $logger,
+	) {
+	}
+
+	/**
+	 * List all IONOS mailboxes with their linked users
+	 *
+	 * @return array<array{email: string, userId: string, displayName: string, username: string}>
+	 */
+	public function listAllMailboxes(): array {
+		$mailboxes = [];
+
+		// Check if IONOS integration is enabled
+		if (!$this->ionosFacade->isEnabled()) {
+			$this->logger->debug('IONOS integration is not enabled');
+			return $mailboxes;
+		}
+
+		// Get all users from Nextcloud
+		$this->userManager->callForSeenUsers(function ($user) use (&$mailboxes) {
+			$userId = $user->getUID();
+			
+			// Try to get IONOS email for this user
+			$email = $this->ionosFacade->getProvisionedEmail($userId);
+			
+			if ($email !== null) {
+				$mailboxes[] = [
+					'email' => $email,
+					'userId' => $userId,
+					'displayName' => $user->getDisplayName(),
+					'username' => $userId,
+				];
+			}
+		});
+
+		$this->logger->info('Listed IONOS mailboxes', [
+			'count' => count($mailboxes),
+		]);
+
+		return $mailboxes;
+	}
+
+	/**
+	 * Update a mailbox email address by changing the localpart
+	 *
+	 * @param string $userId The Nextcloud user ID
+	 * @param string $newLocalpart The new local part (before @)
+	 * @return array{success: bool, email?: string, error?: string}
+	 */
+	public function updateMailboxEmail(string $userId, string $newLocalpart): array {
+		// Validate localpart
+		if (empty($newLocalpart) || !$this->isValidLocalpart($newLocalpart)) {
+			return [
+				'success' => false,
+				'error' => 'Invalid email localpart',
+			];
+		}
+
+		// Get the domain
+		$domain = $this->configService->getMailDomain();
+		$newEmail = $newLocalpart . '@' . $domain;
+
+		// Check if the new email is already taken
+		if ($this->isEmailTaken($newEmail, $userId)) {
+			return [
+				'success' => false,
+				'error' => 'Email is already taken. Please use some other username.',
+			];
+		}
+
+		try {
+			// Get user display name for account name
+			$user = $this->userManager->get($userId);
+			if ($user === null) {
+				return [
+					'success' => false,
+					'error' => 'User not found',
+				];
+			}
+
+			$accountName = $user->getDisplayName();
+
+			// Update the account via IONOS facade
+			// The createAccount method in the facade handles both create and update
+			$account = $this->ionosFacade->createAccount($userId, $newLocalpart, $accountName);
+
+			$this->logger->info('Successfully updated mailbox', [
+				'userId' => $userId,
+				'newEmail' => $newEmail,
+			]);
+
+			return [
+				'success' => true,
+				'email' => $newEmail,
+			];
+		} catch (\Exception $e) {
+			$this->logger->error('Failed to update mailbox email', [
+				'userId' => $userId,
+				'newLocalpart' => $newLocalpart,
+				'exception' => $e,
+			]);
+
+			return [
+				'success' => false,
+				'error' => $e->getMessage(),
+			];
+		}
+	}
+
+	/**
+	 * Delete a mailbox
+	 *
+	 * @param string $userId The Nextcloud user ID
+	 * @return bool True if successful
+	 */
+	public function deleteMailbox(string $userId): bool {
+		try {
+			$success = $this->ionosFacade->deleteAccount($userId);
+			
+			$this->logger->info('Mailbox deletion result', [
+				'userId' => $userId,
+				'success' => $success,
+			]);
+
+			return $success;
+		} catch (\Exception $e) {
+			$this->logger->error('Failed to delete mailbox', [
+				'userId' => $userId,
+				'exception' => $e,
+			]);
+			return false;
+		}
+	}
+
+	/**
+	 * Check if an email is already taken by another user
+	 *
+	 * @param string $email The email address to check
+	 * @param string $excludeUserId User ID to exclude from the check
+	 * @return bool True if email is taken
+	 */
+	private function isEmailTaken(string $email, string $excludeUserId): bool {
+		// Check all users for this email
+		$allUsers = $this->userManager->search('');
+		
+		foreach ($allUsers as $user) {
+			$userId = $user->getUID();
+			
+			// Skip the user we're updating
+			if ($userId === $excludeUserId) {
+				continue;
+			}
+			
+			// Check if this user has this email
+			$userEmail = $this->ionosFacade->getProvisionedEmail($userId);
+			if ($userEmail !== null && strcasecmp($userEmail, $email) === 0) {
+				return true;
+			}
+		}
+		
+		return false;
+	}
+
+	/**
+	 * Validate email localpart
+	 *
+	 * @param string $localpart The localpart to validate
+	 * @return bool True if valid
+	 */
+	private function isValidLocalpart(string $localpart): bool {
+		// Basic validation for email localpart
+		// Allow alphanumeric, dot, hyphen, underscore
+		return preg_match('/^[a-zA-Z0-9._-]+$/', $localpart) === 1;
+	}
+}

From f9cbbdf7e0126c4baa1642c6ea834665726e90a7 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 6 Feb 2026 08:30:52 +0000
Subject: [PATCH 3/5] Add frontend Vue components for mailbox management UI

Co-authored-by: printminion-co <145785698+printminion-co@users.noreply.github.com>
---
 src/components/settings/AdminSettings.vue     |  11 +
 src/components/settings/MailboxListItem.vue   | 121 ++++++
 src/components/settings/MailboxManagement.vue | 383 ++++++++++++++++++
 3 files changed, 515 insertions(+)
 create mode 100644 src/components/settings/MailboxListItem.vue
 create mode 100644 src/components/settings/MailboxManagement.vue

diff --git a/src/components/settings/AdminSettings.vue b/src/components/settings/AdminSettings.vue
index bfd88096fa..460f03041f 100644
--- a/src/components/settings/AdminSettings.vue
+++ b/src/components/settings/AdminSettings.vue
@@ -266,6 +266,15 @@
 				</p>
 			</article>
 		</div>
+		<div class="app-description">
+			<h3>{{ t('mail', 'E-Mail Verwaltung') }}</h3>
+			<article>
+				<p>
+					{{ t('mail', 'Manage IONOS mailboxes linked to Nextcloud users. You can edit email addresses and delete mailboxes from this section.') }}
+				</p>
+			</article>
+			<MailboxManagement />
+		</div>
 	</SettingsSection>
 </template>
 
@@ -273,6 +282,7 @@
 import ButtonVue from '@nextcloud/vue/components/NcButton'
 import GmailAdminOauthSettings from './GmailAdminOauthSettings.vue'
 import logger from '../../logger.js'
+import MailboxManagement from './MailboxManagement.vue'
 import MicrosoftAdminOauthSettings from './MicrosoftAdminOauthSettings.vue'
 import { showError, showSuccess } from '@nextcloud/dialogs'
 import { loadState } from '@nextcloud/initial-state'
@@ -305,6 +315,7 @@ export default {
 	components: {
 		GmailAdminOauthSettings,
 		AntiSpamSettings,
+		MailboxManagement,
 		MicrosoftAdminOauthSettings,
 		ProvisioningSettings,
 		SettingsSection,
diff --git a/src/components/settings/MailboxListItem.vue b/src/components/settings/MailboxListItem.vue
new file mode 100644
index 0000000000..a206fc17ae
--- /dev/null
+++ b/src/components/settings/MailboxListItem.vue
@@ -0,0 +1,121 @@
+<!--
+  - SPDX-FileCopyrightText: 2026 IONOS SE
+  - SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
+<template>
+	<div class="mailbox-list-item">
+		<div class="column-email">
+			<span class="email-address">{{ mailbox.email }}</span>
+		</div>
+		<div class="column-user">
+			<div class="user-info">
+				<NcAvatar :user="mailbox.userId"
+					:display-name="mailbox.displayName"
+					:size="32" />
+				<div class="user-details">
+					<span class="user-name">{{ mailbox.displayName }}</span>
+					<span class="user-id">({{ mailbox.username }})</span>
+				</div>
+			</div>
+		</div>
+		<div class="column-actions">
+			<NcActions>
+				<NcActionButton @click="$emit('edit', mailbox)">
+					<template #icon>
+						<IconPencil :size="20" />
+					</template>
+					{{ t('mail', 'Edit') }}
+				</NcActionButton>
+				<NcActionButton @click="$emit('delete', mailbox)">
+					<template #icon>
+						<IconDelete :size="20" />
+					</template>
+					{{ t('mail', 'Delete') }}
+				</NcActionButton>
+			</NcActions>
+		</div>
+	</div>
+</template>
+
+<script>
+import NcActions from '@nextcloud/vue/components/NcActions'
+import NcActionButton from '@nextcloud/vue/components/NcActionButton'
+import NcAvatar from '@nextcloud/vue/components/NcAvatar'
+import IconPencil from 'vue-material-design-icons/Pencil.vue'
+import IconDelete from 'vue-material-design-icons/Delete.vue'
+
+export default {
+	name: 'MailboxListItem',
+	components: {
+		NcActions,
+		NcActionButton,
+		NcAvatar,
+		IconPencil,
+		IconDelete,
+	},
+	props: {
+		mailbox: {
+			type: Object,
+			required: true,
+		},
+	},
+	emits: ['edit', 'delete'],
+}
+</script>
+
+<style lang="scss" scoped>
+.mailbox-list-item {
+	display: flex;
+	padding: 16px;
+	border-bottom: 1px solid var(--color-border);
+	align-items: center;
+
+	&:hover {
+		background-color: var(--color-background-hover);
+	}
+
+	.column-email {
+		flex: 0 0 35%;
+
+		.email-address {
+			font-family: monospace;
+			font-size: 14px;
+			color: var(--color-text-darker);
+		}
+	}
+
+	.column-user {
+		flex: 1;
+
+		.user-info {
+			display: flex;
+			align-items: center;
+			gap: 12px;
+
+			.user-details {
+				display: flex;
+				flex-direction: column;
+				gap: 2px;
+
+				.user-name {
+					font-size: 14px;
+					font-weight: 500;
+					color: var(--color-text-darker);
+				}
+
+				.user-id {
+					font-size: 13px;
+					color: var(--color-text-lighter);
+				}
+			}
+		}
+	}
+
+	.column-actions {
+		flex: 0 0 120px;
+		display: flex;
+		justify-content: flex-end;
+	}
+}
+</style>
diff --git a/src/components/settings/MailboxManagement.vue b/src/components/settings/MailboxManagement.vue
new file mode 100644
index 0000000000..95a4810616
--- /dev/null
+++ b/src/components/settings/MailboxManagement.vue
@@ -0,0 +1,383 @@
+<!--
+  - SPDX-FileCopyrightText: 2026 IONOS SE
+  - SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
+<template>
+	<div class="mailbox-management">
+		<h3>{{ t('mail', 'E-Mails verwalten') }}</h3>
+		
+		<div v-if="loading" class="loading">
+			<NcLoadingIcon :size="32" />
+			<p>{{ t('mail', 'Loading mailboxes...') }}</p>
+		</div>
+
+		<div v-else-if="error" class="error">
+			<p>{{ error }}</p>
+		</div>
+
+		<div v-else-if="mailboxes.length === 0" class="empty">
+			<p>{{ t('mail', 'No IONOS mailboxes found.') }}</p>
+		</div>
+
+		<div v-else class="mailbox-list">
+			<div class="mailbox-list-header">
+				<div class="column-email">{{ t('mail', 'E-Mail-Postfach') }}</div>
+				<div class="column-user">{{ t('mail', 'Verknüpfter Benutzer') }}</div>
+				<div class="column-actions">{{ t('mail', 'Actions') }}</div>
+			</div>
+
+			<MailboxListItem
+				v-for="mailbox in mailboxes"
+				:key="mailbox.userId"
+				:mailbox="mailbox"
+				@edit="onEdit"
+				@delete="onDelete" />
+		</div>
+
+		<!-- Edit Modal -->
+		<NcModal v-if="showEditModal"
+			@close="closeEditModal"
+			:name="t('mail', 'Edit Mailbox')">
+			<div class="modal-content">
+				<h2>{{ t('mail', 'Edit Email Address') }}</h2>
+				<p>{{ t('mail', 'Change the local part of the email address (before @)') }}</p>
+				
+				<div class="form-group">
+					<label for="localpart">{{ t('mail', 'Email User') }}</label>
+					<div class="email-input-container">
+						<input
+							id="localpart"
+							v-model="editLocalpart"
+							type="text"
+							:placeholder="t('mail', 'username')"
+							@keyup.enter="saveEdit">
+						<span class="email-domain">@{{ emailDomain }}</span>
+					</div>
+					<p v-if="editError" class="error-message">{{ editError }}</p>
+				</div>
+
+				<div class="modal-actions">
+					<NcButton @click="closeEditModal">
+						{{ t('mail', 'Cancel') }}
+					</NcButton>
+					<NcButton type="primary"
+						:disabled="editSaving || !editLocalpart"
+						@click="saveEdit">
+						<template v-if="editSaving">
+							<NcLoadingIcon :size="20" />
+						</template>
+						{{ t('mail', 'Save') }}
+					</NcButton>
+				</div>
+			</div>
+		</NcModal>
+
+		<!-- Delete Confirmation Dialog -->
+		<NcModal v-if="showDeleteModal"
+			@close="closeDeleteModal"
+			:name="t('mail', 'Account deletion')">
+			<div class="modal-content">
+				<h2>{{ t('mail', 'Account deletion') }}</h2>
+				<p>
+					{{ t('mail', 'Fully delete {username}\'s mailbox including all their email data.', { username: deleteMailbox?.displayName || deleteMailbox?.username }) }}
+				</p>
+				<p class="warning">
+					{{ t('mail', 'This action cannot be undone.') }}
+				</p>
+
+				<div class="modal-actions">
+					<NcButton @click="closeDeleteModal">
+						{{ t('mail', 'Cancel') }}
+					</NcButton>
+					<NcButton type="error"
+						:disabled="deleteProcessing"
+						@click="confirmDelete">
+						<template v-if="deleteProcessing">
+							<NcLoadingIcon :size="20" />
+						</template>
+						{{ t('mail', 'Delete {username}\'s mailbox', { username: deleteMailbox?.username }) }}
+					</NcButton>
+				</div>
+			</div>
+		</NcModal>
+	</div>
+</template>
+
+<script>
+import NcButton from '@nextcloud/vue/components/NcButton'
+import NcLoadingIcon from '@nextcloud/vue/components/NcLoadingIcon'
+import NcModal from '@nextcloud/vue/components/NcModal'
+import MailboxListItem from './MailboxListItem.vue'
+import { showError, showSuccess } from '@nextcloud/dialogs'
+import axios from '@nextcloud/axios'
+import { generateUrl } from '@nextcloud/router'
+import logger from '../../logger.js'
+
+export default {
+	name: 'MailboxManagement',
+	components: {
+		NcButton,
+		NcLoadingIcon,
+		NcModal,
+		MailboxListItem,
+	},
+	data() {
+		return {
+			loading: true,
+			error: null,
+			mailboxes: [],
+			emailDomain: '',
+			
+			// Edit state
+			showEditModal: false,
+			editMailbox: null,
+			editLocalpart: '',
+			editError: null,
+			editSaving: false,
+			
+			// Delete state
+			showDeleteModal: false,
+			deleteMailbox: null,
+			deleteProcessing: false,
+		}
+	},
+	mounted() {
+		this.loadMailboxes()
+	},
+	methods: {
+		async loadMailboxes() {
+			this.loading = true
+			this.error = null
+
+			try {
+				const url = generateUrl('/apps/mail/api/admin/mailboxes')
+				const response = await axios.get(url)
+				
+				this.mailboxes = response.data.mailboxes || []
+				
+				// Extract domain from first mailbox if available
+				if (this.mailboxes.length > 0) {
+					const firstEmail = this.mailboxes[0].email
+					const atIndex = firstEmail.indexOf('@')
+					if (atIndex !== -1) {
+						this.emailDomain = firstEmail.substring(atIndex + 1)
+					}
+				}
+				
+				logger.info('Loaded mailboxes', { count: this.mailboxes.length })
+			} catch (error) {
+				logger.error('Failed to load mailboxes', { error })
+				this.error = this.t('mail', 'Failed to load mailboxes. Please try again.')
+				showError(this.t('mail', 'Failed to load mailboxes'))
+			} finally {
+				this.loading = false
+			}
+		},
+
+		onEdit(mailbox) {
+			this.editMailbox = mailbox
+			// Extract localpart from email
+			const atIndex = mailbox.email.indexOf('@')
+			this.editLocalpart = atIndex !== -1 ? mailbox.email.substring(0, atIndex) : ''
+			this.editError = null
+			this.showEditModal = true
+		},
+
+		closeEditModal() {
+			this.showEditModal = false
+			this.editMailbox = null
+			this.editLocalpart = ''
+			this.editError = null
+			this.editSaving = false
+		},
+
+		async saveEdit() {
+			if (!this.editLocalpart || this.editSaving) {
+				return
+			}
+
+			this.editSaving = true
+			this.editError = null
+
+			try {
+				const url = generateUrl('/apps/mail/api/admin/mailboxes/{userId}', {
+					userId: this.editMailbox.userId,
+				})
+				
+				const response = await axios.patch(url, {
+					newLocalpart: this.editLocalpart,
+				})
+
+				if (response.data.success) {
+					showSuccess(this.t('mail', 'Mailbox updated successfully'))
+					this.closeEditModal()
+					// Reload mailboxes to show updated email
+					await this.loadMailboxes()
+				} else {
+					this.editError = response.data.error || this.t('mail', 'Failed to update mailbox')
+				}
+			} catch (error) {
+				logger.error('Failed to update mailbox', { error })
+				
+				if (error.response?.data?.error) {
+					this.editError = error.response.data.error
+				} else {
+					this.editError = this.t('mail', 'Failed to update mailbox. Please try again.')
+					showError(this.t('mail', 'Failed to update mailbox'))
+				}
+			} finally {
+				this.editSaving = false
+			}
+		},
+
+		onDelete(mailbox) {
+			this.deleteMailbox = mailbox
+			this.showDeleteModal = true
+		},
+
+		closeDeleteModal() {
+			this.showDeleteModal = false
+			this.deleteMailbox = null
+			this.deleteProcessing = false
+		},
+
+		async confirmDelete() {
+			if (!this.deleteMailbox || this.deleteProcessing) {
+				return
+			}
+
+			this.deleteProcessing = true
+
+			try {
+				const url = generateUrl('/apps/mail/api/admin/mailboxes/{userId}', {
+					userId: this.deleteMailbox.userId,
+				})
+				
+				await axios.delete(url)
+
+				showSuccess(this.t('mail', 'Mailbox deleted successfully'))
+				this.closeDeleteModal()
+				// Reload mailboxes to remove deleted one
+				await this.loadMailboxes()
+			} catch (error) {
+				logger.error('Failed to delete mailbox', { error })
+				showError(this.t('mail', 'Failed to delete mailbox. Please try again.'))
+				this.deleteProcessing = false
+			}
+		},
+	},
+}
+</script>
+
+<style lang="scss" scoped>
+.mailbox-management {
+	margin-top: 24px;
+
+	h3 {
+		font-size: 18px;
+		font-weight: 600;
+		margin-bottom: 16px;
+	}
+
+	.loading,
+	.error,
+	.empty {
+		padding: 32px;
+		text-align: center;
+	}
+
+	.error {
+		color: var(--color-error);
+	}
+
+	.mailbox-list {
+		.mailbox-list-header {
+			display: flex;
+			padding: 12px 16px;
+			background-color: var(--color-background-dark);
+			border-radius: 8px 8px 0 0;
+			font-weight: 600;
+			font-size: 14px;
+
+			.column-email {
+				flex: 0 0 35%;
+			}
+
+			.column-user {
+				flex: 1;
+			}
+
+			.column-actions {
+				flex: 0 0 120px;
+				text-align: right;
+			}
+		}
+	}
+}
+
+.modal-content {
+	padding: 24px;
+
+	h2 {
+		margin-bottom: 16px;
+	}
+
+	p {
+		margin-bottom: 16px;
+		color: var(--color-text-lighter);
+	}
+
+	.warning {
+		color: var(--color-error);
+		font-weight: 600;
+	}
+
+	.form-group {
+		margin-bottom: 24px;
+
+		label {
+			display: block;
+			margin-bottom: 8px;
+			font-weight: 600;
+		}
+
+		.email-input-container {
+			display: flex;
+			align-items: center;
+			gap: 4px;
+
+			input {
+				flex: 1;
+				padding: 8px 12px;
+				border: 1px solid var(--color-border-dark);
+				border-radius: 4px;
+				font-size: 14px;
+
+				&:focus {
+					outline: none;
+					border-color: var(--color-primary);
+				}
+			}
+
+			.email-domain {
+				color: var(--color-text-lighter);
+				font-size: 14px;
+			}
+		}
+
+		.error-message {
+			margin-top: 8px;
+			color: var(--color-error);
+			font-size: 13px;
+		}
+	}
+
+	.modal-actions {
+		display: flex;
+		justify-content: flex-end;
+		gap: 8px;
+		margin-top: 24px;
+	}
+}
+</style>

From 5408bb18a13cc1baeb37555b61d7ec61389bf5d8 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 6 Feb 2026 08:42:12 +0000
Subject: [PATCH 4/5] Fix linting issues in mailbox management components

Co-authored-by: printminion-co <145785698+printminion-co@users.noreply.github.com>
---
 package-lock.json                             | 161 ++++++------------
 src/components/Envelope.vue                   |   2 +-
 src/components/ExternalProviderTab.vue        |   3 +
 src/components/settings/MailboxManagement.vue |  50 +++---
 4 files changed, 80 insertions(+), 136 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index f0487abfe7..a72bd18500 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,7 @@
   "packages": {
     "": {
       "name": "nextcloud-mail",
-      "version": "5.5.9",
+      "version": "5.5.11",
       "license": "AGPL-3.0-only",
       "dependencies": {
         "@ckeditor/ckeditor5-alignment": "44.3.0",
@@ -184,6 +184,7 @@
       "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.28.0.tgz",
       "integrity": "sha512-UlLAnTPrFdNGoFtbSXwcGFQBtQZJCNjaN6hQNP3UPvuNXT1i82N26KL3dZeIpNalWywr9IuQuncaAfUaS1g6sQ==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@ampproject/remapping": "^2.2.0",
         "@babel/code-frame": "^7.27.1",
@@ -215,6 +216,7 @@
       "integrity": "sha512-N4ntErOlKvcbTt01rr5wj3y55xnIdx1ymrfIr8C2WnM1Y9glFgWaGDEULJIazOX3XM9NRzhfJ6zZnQ1sBNWU+w==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@nicolo-ribaudo/eslint-scope-5-internals": "5.1.1-v1",
         "eslint-visitor-keys": "^2.1.0",
@@ -3105,6 +3107,7 @@
       "resolved": "https://registry.npmjs.org/postcss-selector-parser/-/postcss-selector-parser-7.1.0.tgz",
       "integrity": "sha512-8sLjZwK0R+JlxlYcTuVnyT2v+htpdrjDOKuMcOVdYjt52Lh8hWRYpxBPoKx/Zg+bcjc3wx6fmQevMmUztS/ccA==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "cssesc": "^3.0.0",
         "util-deprecate": "^1.0.2"
@@ -4165,6 +4168,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=18"
       },
@@ -4187,6 +4191,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -4252,7 +4257,6 @@
       "resolved": "https://registry.npmjs.org/@es-joy/jsdoccomment/-/jsdoccomment-0.41.0.tgz",
       "integrity": "sha512-aKUhyn1QI5Ksbqcr3fFJj16p99QdjUxXAEuFst1Z47DRyoiMwivIH9MV/ARcJOCXVjPfjITciej8ZD2O/6qUmw==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "comment-parser": "1.4.1",
         "esquery": "^1.5.0",
@@ -4698,7 +4702,6 @@
       "resolved": "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.12.1.tgz",
       "integrity": "sha512-CCZCDJuduB9OUkFkY2IgppNZMi2lBQgD2qzwXkEia16cge2pijY/aXi96CJMquDMn3nJdlPV1A5KrJEXwfLNzQ==",
       "dev": true,
-      "peer": true,
       "engines": {
         "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
       }
@@ -4708,7 +4711,6 @@
       "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-2.1.4.tgz",
       "integrity": "sha512-269Z39MS6wVJtsoUl10L60WdkhJVdPG24Q4eZTH3nnF6lpvSShEK3wQjDX9JRWAUPvPh7COouPpU9IrqaZFvtQ==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "ajv": "^6.12.4",
         "debug": "^4.3.2",
@@ -4731,8 +4733,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
       "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
-      "dev": true,
-      "peer": true
+      "dev": true
     },
     "node_modules/@eslint/eslintrc/node_modules/brace-expansion": {
       "version": "1.1.12",
@@ -4740,7 +4741,6 @@
       "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -4751,7 +4751,6 @@
       "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
       "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "type-fest": "^0.20.2"
       },
@@ -4767,7 +4766,6 @@
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
       "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "argparse": "^2.0.1"
       },
@@ -4780,7 +4778,6 @@
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
       "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "brace-expansion": "^1.1.7"
       },
@@ -4793,7 +4790,6 @@
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.20.2.tgz",
       "integrity": "sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==",
       "dev": true,
-      "peer": true,
       "engines": {
         "node": ">=10"
       },
@@ -4806,7 +4802,6 @@
       "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.57.1.tgz",
       "integrity": "sha512-d9zaMRSTIKDLhctzH12MtXvJKSSUhaHcjV+2Z+GK+EEY7XKpP5yR4x+N3TAcHTcu963nIr+TMcCb4DBCYX1z6Q==",
       "dev": true,
-      "peer": true,
       "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
       }
@@ -4857,7 +4852,6 @@
       "integrity": "sha512-DZLEEqFWQFiyK6h5YIeynKx7JlvCYWL0cImfSRXZ9l4Sg2efkFGTuFf6vzXjK1cq6IYkU+Eg/JizXw+TD2vRNw==",
       "deprecated": "Use @eslint/config-array instead",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "@humanwhocodes/object-schema": "^2.0.3",
         "debug": "^4.3.1",
@@ -4873,7 +4867,6 @@
       "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -4884,7 +4877,6 @@
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
       "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "brace-expansion": "^1.1.7"
       },
@@ -4897,7 +4889,6 @@
       "resolved": "https://registry.npmjs.org/@humanwhocodes/module-importer/-/module-importer-1.0.1.tgz",
       "integrity": "sha512-bxveV4V8v5Yb4ncFTT3rPSgZBOpCkjfK0y4oVVVJwIuDVBRMDXrPyXRL988i5ap9m9bnyEEjWfm5WkBmtffLfA==",
       "dev": true,
-      "peer": true,
       "engines": {
         "node": ">=12.22"
       },
@@ -4911,8 +4902,7 @@
       "resolved": "https://registry.npmjs.org/@humanwhocodes/object-schema/-/object-schema-2.0.3.tgz",
       "integrity": "sha512-93zYdMES/c1D69yZiKDBj0V24vqNzB/koF26KPaagAfd3P/4gUlh3Dys5ogAK+Exi9QyzlD8x/08Zt7wIKcDcA==",
       "deprecated": "Use @eslint/object-schema instead",
-      "dev": true,
-      "peer": true
+      "dev": true
     },
     "node_modules/@iframe-resizer/child": {
       "version": "5.5.5",
@@ -5844,6 +5834,7 @@
       "integrity": "sha512-RX+0FxpL1h2EzjNLeW0VSGTkbyWIq7WgV7QAjtyUmDbSGwf1ds9Zy5OcRkgXRHRIu/W0gB0DhS2iz9qXHphCzA==",
       "dev": true,
       "license": "ISC",
+      "peer": true,
       "dependencies": {
         "fast-xml-parser": "^4.2.5",
         "requireindex": "^1.2.0",
@@ -6112,6 +6103,7 @@
       "resolved": "https://registry.npmjs.org/@nextcloud/timezones/-/timezones-0.2.0.tgz",
       "integrity": "sha512-1mwQ+asTFOgv9rxPoAMEbDF8JfnenIa2EGNS+8MATCyi6WXxYh0Lhkaq1d3l2+xNbUPHgMnk4cRYsvIo319lkA==",
       "license": "AGPL-3.0-or-later",
+      "peer": true,
       "dependencies": {
         "ical.js": "^2.1.0"
       },
@@ -6136,6 +6128,7 @@
       "resolved": "https://registry.npmjs.org/@nextcloud/vue/-/vue-8.31.0.tgz",
       "integrity": "sha512-P5m3Odfw4m0siu7qs88WJutu2C8mEknqMS1ijlqYtQvc8qZwmpQshgCV5GhyyBTTK9Baicthm+ULglIf/Eq/sg==",
       "license": "AGPL-3.0-or-later",
+      "peer": true,
       "dependencies": {
         "@floating-ui/dom": "^1.7.4",
         "@linusborg/vue-simple-portal": "^0.1.5",
@@ -6282,7 +6275,6 @@
       "resolved": "https://registry.npmjs.org/@nolyfill/is-core-module/-/is-core-module-1.0.39.tgz",
       "integrity": "sha512-nn5ozdjYQpUCZlWGuxcJY/KpxkWQs4DcbMCmKojjyrYDEAGy4Ce19NN4v5MduafTwJlbKc99UA8YhSVqq9yPZA==",
       "dev": true,
-      "peer": true,
       "engines": {
         "node": ">=12.4.0"
       }
@@ -7098,7 +7090,6 @@
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-7.18.0.tgz",
       "integrity": "sha512-94EQTWZ40mzBc42ATNIBimBEDltSJ9RQHCC8vc/PDbxi4k8dVwUAv4o98dk50M1zB+JGFxp43FP7f8+FP8R6Sw==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "@eslint-community/regexpp": "^4.10.0",
         "@typescript-eslint/scope-manager": "7.18.0",
@@ -7197,7 +7188,6 @@
       "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-7.18.0.tgz",
       "integrity": "sha512-jjhdIE/FPF2B7Z1uzc6i3oWKbGcHb87Qw7AWj6jmEqNOfDFbJWtjt/XfwCpvNkpGWlcJaog5vTR+VV8+w9JflA==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/types": "7.18.0",
         "@typescript-eslint/visitor-keys": "7.18.0"
@@ -7232,7 +7222,6 @@
       "resolved": "https://registry.npmjs.org/@typescript-eslint/type-utils/-/type-utils-7.18.0.tgz",
       "integrity": "sha512-XL0FJXuCLaDuX2sYqZUUSOJ2sG5/i1AAze+axqmLnSkNEVMVYLF+cbwlB2w8D1tinFuSikHmFta+P+HOofrLeA==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/typescript-estree": "7.18.0",
         "@typescript-eslint/utils": "7.18.0",
@@ -7260,7 +7249,6 @@
       "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-7.18.0.tgz",
       "integrity": "sha512-iZqi+Ds1y4EDYUtlOOC+aUmxnE9xS/yCigkjA7XpTKV6nCBd3Hp/PRGGmdwnfkV2ThMyYldP1wRpm/id99spTQ==",
       "dev": true,
-      "peer": true,
       "engines": {
         "node": "^18.18.0 || >=20.0.0"
       },
@@ -7274,7 +7262,6 @@
       "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-7.18.0.tgz",
       "integrity": "sha512-aP1v/BSPnnyhMHts8cf1qQ6Q1IFwwRvAQGRvBFkWlo3/lH29OXA3Pts+c10nxRxIBrDnoMqzhgdwVe5f2D6OzA==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/types": "7.18.0",
         "@typescript-eslint/visitor-keys": "7.18.0",
@@ -7303,7 +7290,6 @@
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.3.tgz",
       "integrity": "sha512-oVekP1cKtI+CTDvHWYFUcMtsK/00wmAEfyqKfNdARm8u1wNVhSgaX7A8d4UuIlUI5e84iEwOhs7ZPYRmzU9U6A==",
       "dev": true,
-      "peer": true,
       "bin": {
         "semver": "bin/semver.js"
       },
@@ -7316,7 +7302,6 @@
       "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-7.18.0.tgz",
       "integrity": "sha512-kK0/rNa2j74XuHVcoCZxdFBMF+aq/vH83CXAOHieC+2Gis4mF8jJXT5eAfyD3K0sAxtPuwxaIOIOvhwzVDt/kw==",
       "dev": true,
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.4.0",
         "@typescript-eslint/scope-manager": "7.18.0",
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@@ -18019,6 +17964,7 @@
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@@ -18682,7 +18624,6 @@
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@@ -20100,15 +20043,13 @@
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-      "dev": true,
-      "peer": true
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@@ -20118,8 +20059,7 @@
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@@ -20153,8 +20093,7 @@
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       "version": "2.0.6",
@@ -20502,6 +20441,7 @@
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       ],
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+      "peer": true,
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@@ -20583,7 +20522,6 @@
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-      "peer": true,
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         "semver": "bin/semver.js"
       },
@@ -20659,7 +20595,6 @@
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@@ -20683,7 +20618,6 @@
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@@ -20697,16 +20631,14 @@
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       "dev": true,
-      "license": "CC0-1.0",
-      "peer": true
+      "license": "CC0-1.0"
     },
     "node_modules/stylelint-scss/node_modules/mdn-data": {
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       "dev": true,
-      "license": "CC0-1.0",
-      "peer": true
+      "license": "CC0-1.0"
     },
     "node_modules/stylelint-scss/node_modules/postcss-selector-parser": {
       "version": "7.1.0",
@@ -20714,7 +20646,6 @@
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-      "peer": true,
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@@ -20867,6 +20798,7 @@
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       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "cssesc": "^3.0.0",
         "util-deprecate": "^1.0.2"
@@ -21350,8 +21282,7 @@
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-      "dev": true,
-      "peer": true
+      "dev": true
     },
     "node_modules/through2": {
       "version": "3.0.2",
@@ -21427,6 +21358,7 @@
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       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -21535,7 +21467,6 @@
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-      "peer": true,
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         "node": ">=16"
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@@ -21765,7 +21696,6 @@
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       "dev": true,
-      "peer": true,
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         "prelude-ls": "^1.2.1"
       },
@@ -21876,6 +21806,7 @@
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       "license": "Apache-2.0",
+      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -22308,6 +22239,7 @@
       "resolved": "https://registry.npmjs.org/vue/-/vue-2.7.16.tgz",
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       "deprecated": "Vue 2 has reached EOL and is no longer actively maintained. See https://v2.vuejs.org/eol/ for more details.",
+      "peer": true,
       "dependencies": {
         "@vue/compiler-sfc": "2.7.16",
         "csstype": "^3.1.0"
@@ -22580,6 +22512,7 @@
       "resolved": "https://registry.npmjs.org/vue-template-compiler/-/vue-template-compiler-2.7.16.tgz",
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       "dev": true,
+      "peer": true,
       "dependencies": {
         "de-indent": "^1.0.2",
         "he": "^1.2.0"
@@ -22739,6 +22672,7 @@
       "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.101.0.tgz",
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       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@types/eslint-scope": "^3.7.7",
         "@types/estree": "^1.0.8",
@@ -22787,6 +22721,7 @@
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       "integrity": "sha512-pIDJHIEI9LR0yxHXQ+Qh95k2EvXpWzZ5l+d+jIo+RdSm9MiHfzazIxwwni/p7+x4eJZuvG1AJwgC4TNQ7NRgsg==",
       "dev": true,
+      "peer": true,
       "dependencies": {
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         "@webpack-cli/configtest": "^2.1.1",
diff --git a/src/components/Envelope.vue b/src/components/Envelope.vue
index 7c0454aee6..3e66498239 100644
--- a/src/components/Envelope.vue
+++ b/src/components/Envelope.vue
@@ -971,7 +971,7 @@ export default {
 				 *
 				 * In Mailbox.onDelete, fetchNextEnvelopes requires the current envelope to find the next envelope.
 				 * Therefore, it must run before removing the envelope.
-			 	 */
+				 */
 
 				if (removeEnvelope) {
 					this.$emit('delete', envelope)
diff --git a/src/components/ExternalProviderTab.vue b/src/components/ExternalProviderTab.vue
index edc7cb8e3a..2c7edb47c7 100644
--- a/src/components/ExternalProviderTab.vue
+++ b/src/components/ExternalProviderTab.vue
@@ -305,6 +305,8 @@ export default {
 		/**
 		 * Try to fetch mailboxes with exponential backoff retry logic
 		 * Returns true if successful, false if all retries failed
+		 * @param account
+		 * @param maxAttempts
 		 */
 		async tryFetchMailboxesWithRetry(account, maxAttempts = 3) {
 			for (let attempt = 1; attempt <= maxAttempts; attempt++) {
@@ -359,6 +361,7 @@ export default {
 
 		/**
 		 * Helper to delay execution
+		 * @param ms
 		 */
 		delay(ms) {
 			return new Promise(resolve => setTimeout(resolve, ms))
diff --git a/src/components/settings/MailboxManagement.vue b/src/components/settings/MailboxManagement.vue
index 95a4810616..cc7527ee25 100644
--- a/src/components/settings/MailboxManagement.vue
+++ b/src/components/settings/MailboxManagement.vue
@@ -6,7 +6,7 @@
 <template>
 	<div class="mailbox-management">
 		<h3>{{ t('mail', 'E-Mails verwalten') }}</h3>
-		
+
 		<div v-if="loading" class="loading">
 			<NcLoadingIcon :size="32" />
 			<p>{{ t('mail', 'Loading mailboxes...') }}</p>
@@ -22,13 +22,18 @@
 
 		<div v-else class="mailbox-list">
 			<div class="mailbox-list-header">
-				<div class="column-email">{{ t('mail', 'E-Mail-Postfach') }}</div>
-				<div class="column-user">{{ t('mail', 'Verknüpfter Benutzer') }}</div>
-				<div class="column-actions">{{ t('mail', 'Actions') }}</div>
+				<div class="column-email">
+					{{ t('mail', 'E-Mail-Postfach') }}
+				</div>
+				<div class="column-user">
+					{{ t('mail', 'Verknüpfter Benutzer') }}
+				</div>
+				<div class="column-actions">
+					{{ t('mail', 'Actions') }}
+				</div>
 			</div>
 
-			<MailboxListItem
-				v-for="mailbox in mailboxes"
+			<MailboxListItem v-for="mailbox in mailboxes"
 				:key="mailbox.userId"
 				:mailbox="mailbox"
 				@edit="onEdit"
@@ -37,24 +42,25 @@
 
 		<!-- Edit Modal -->
 		<NcModal v-if="showEditModal"
-			@close="closeEditModal"
-			:name="t('mail', 'Edit Mailbox')">
+			:name="t('mail', 'Edit Mailbox')"
+			@close="closeEditModal">
 			<div class="modal-content">
 				<h2>{{ t('mail', 'Edit Email Address') }}</h2>
 				<p>{{ t('mail', 'Change the local part of the email address (before @)') }}</p>
-				
+
 				<div class="form-group">
 					<label for="localpart">{{ t('mail', 'Email User') }}</label>
 					<div class="email-input-container">
-						<input
-							id="localpart"
+						<input id="localpart"
 							v-model="editLocalpart"
 							type="text"
 							:placeholder="t('mail', 'username')"
 							@keyup.enter="saveEdit">
 						<span class="email-domain">@{{ emailDomain }}</span>
 					</div>
-					<p v-if="editError" class="error-message">{{ editError }}</p>
+					<p v-if="editError" class="error-message">
+						{{ editError }}
+					</p>
 				</div>
 
 				<div class="modal-actions">
@@ -75,8 +81,8 @@
 
 		<!-- Delete Confirmation Dialog -->
 		<NcModal v-if="showDeleteModal"
-			@close="closeDeleteModal"
-			:name="t('mail', 'Account deletion')">
+			:name="t('mail', 'Account deletion')"
+			@close="closeDeleteModal">
 			<div class="modal-content">
 				<h2>{{ t('mail', 'Account deletion') }}</h2>
 				<p>
@@ -128,14 +134,14 @@ export default {
 			error: null,
 			mailboxes: [],
 			emailDomain: '',
-			
+
 			// Edit state
 			showEditModal: false,
 			editMailbox: null,
 			editLocalpart: '',
 			editError: null,
 			editSaving: false,
-			
+
 			// Delete state
 			showDeleteModal: false,
 			deleteMailbox: null,
@@ -153,9 +159,9 @@ export default {
 			try {
 				const url = generateUrl('/apps/mail/api/admin/mailboxes')
 				const response = await axios.get(url)
-				
+
 				this.mailboxes = response.data.mailboxes || []
-				
+
 				// Extract domain from first mailbox if available
 				if (this.mailboxes.length > 0) {
 					const firstEmail = this.mailboxes[0].email
@@ -164,7 +170,7 @@ export default {
 						this.emailDomain = firstEmail.substring(atIndex + 1)
 					}
 				}
-				
+
 				logger.info('Loaded mailboxes', { count: this.mailboxes.length })
 			} catch (error) {
 				logger.error('Failed to load mailboxes', { error })
@@ -204,7 +210,7 @@ export default {
 				const url = generateUrl('/apps/mail/api/admin/mailboxes/{userId}', {
 					userId: this.editMailbox.userId,
 				})
-				
+
 				const response = await axios.patch(url, {
 					newLocalpart: this.editLocalpart,
 				})
@@ -219,7 +225,7 @@ export default {
 				}
 			} catch (error) {
 				logger.error('Failed to update mailbox', { error })
-				
+
 				if (error.response?.data?.error) {
 					this.editError = error.response.data.error
 				} else {
@@ -253,7 +259,7 @@ export default {
 				const url = generateUrl('/apps/mail/api/admin/mailboxes/{userId}', {
 					userId: this.deleteMailbox.userId,
 				})
-				
+
 				await axios.delete(url)
 
 				showSuccess(this.t('mail', 'Mailbox deleted successfully'))

From 46d33a68934fc06150a08995d6964b250bc074ee Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 6 Feb 2026 08:43:36 +0000
Subject: [PATCH 5/5] Add documentation for IONOS mailbox management feature

Co-authored-by: printminion-co <145785698+printminion-co@users.noreply.github.com>
---
 doc/admin.md | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/doc/admin.md b/doc/admin.md
index f8d1c9ea82..e45eef1f51 100644
--- a/doc/admin.md
+++ b/doc/admin.md
@@ -286,3 +286,41 @@ If you can not access your Outlook.com account try to enable the 'Two-Factor Ver
 If autoconfiguration for your domain fails, you can create an autoconfig file and place it as https://autoconfig.yourdomain.tld/mail/config-v1.1.xml
 For more information please refer to Mozilla's documentation:
 https://developer.mozilla.org/en-US/docs/Mozilla/Thunderbird/Autoconfiguration/FileFormat/HowTo
+
+## IONOS Mailbox Management
+
+If you have IONOS mail integration enabled, administrators can manage IONOS mailboxes from the admin settings page.
+
+### Features
+
+- **View all mailboxes**: Lists all IONOS mailboxes linked to Nextcloud users
+- **Edit email addresses**: Change the local part (before @) of a user's email address
+- **Delete mailboxes**: Remove IONOS mailboxes with confirmation
+
+### Access
+
+1. Navigate to Administration Settings > Mail
+2. Scroll down to the "E-Mail Verwaltung" (Email Administration) section
+
+### Edit a Mailbox
+
+To change a user's email address:
+
+1. Click the three-dot menu next to the mailbox
+2. Select "Edit"
+3. Enter the new local part (username before @)
+4. Click "Save"
+
+The system will validate that:
+- The new email address is not already in use
+- The local part is valid (alphanumeric, dots, hyphens, underscores)
+
+### Delete a Mailbox
+
+To delete a user's IONOS mailbox:
+
+1. Click the three-dot menu next to the mailbox
+2. Select "Delete"
+3. Confirm the deletion in the dialog
+
+**Warning**: This action cannot be undone and will remove all email data for that user.