diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index d372e964f..84c12b591 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -1,6 +1,7 @@
 <template>
-  <router-view />
+  <Suspense>
+    <router-view />
+  </Suspense>
 </template>
 
-<script setup>
-</script>
+<script setup></script>
diff --git a/frontend/src/components/calendars/CalendarForm.vue b/frontend/src/components/calendars/CalendarForm.vue
index 8a1d755b3..168497494 100644
--- a/frontend/src/components/calendars/CalendarForm.vue
+++ b/frontend/src/components/calendars/CalendarForm.vue
@@ -34,8 +34,8 @@
       </v-card-text>
       <v-card-actions>
         <v-spacer />
-        <v-btn @click="close">{{ $gettext('Close') }}</v-btn>
-        <v-btn color="primary" type="submit">
+        <v-btn :loading="working" @click="close">{{ $gettext('Close') }}</v-btn>
+        <v-btn color="primary" type="submit" :loading="working">
           {{ submitLabel }}
         </v-btn>
       </v-card-actions>
@@ -64,14 +64,17 @@ const { $gettext } = useGettext()
 const busStore = useBusStore()
 
 onMounted(() => {
-  calendar.value = { ...props.initialCalendar }
-  shared.value = props.initialCalendar.domain !== undefined
+  if (props.initialCalendar) {
+    calendar.value = { ...props.initialCalendar }
+    shared.value = props.initialCalendar.domain !== undefined
+  }
 })
 
 const calendar = ref({})
 const shared = ref(false)
 const formErrors = ref({})
 const formRef = ref()
+const working = ref(false)
 
 const submitLabel = computed(() => {
   if (calendar.value.pk) {
@@ -93,19 +96,27 @@ async function submit() {
     return
   }
   let msg
-  if (calendar.value.pk) {
-    await calendarsApi.updateUserCalendar(calendar.value.pk, calendar.value)
-    msg = $gettext('Calendar updated')
-  } else {
-    await calendarsApi.createUserCalendar(calendar.value)
-    msg = $gettext('Calendar created')
+  working.value = true
+  try {
+    if (calendar.value.pk) {
+      await calendarsApi.updateUserCalendar(calendar.value.pk, calendar.value)
+      msg = $gettext('Calendar updated')
+    } else {
+      await calendarsApi.createUserCalendar(calendar.value)
+      msg = $gettext('Calendar created')
+    }
+    if (
+      props.initialCalendar &&
+      props.initialCalendar.color !== calendar.value.color
+    ) {
+      emit('colorChanged', calendar.value)
+    }
+    close()
+    busStore.displayNotification({
+      msg,
+    })
+  } finally {
+    working.value = false
   }
-  if (props.initialCalendar.color !== calendar.value.color) {
-    emit('colorChanged', calendar.value)
-  }
-  close()
-  busStore.displayNotification({
-    msg,
-  })
 }
 </script>
diff --git a/frontend/src/components/calendars/EventForm.vue b/frontend/src/components/calendars/EventForm.vue
index 4334b3a1c..cd7f7708d 100644
--- a/frontend/src/components/calendars/EventForm.vue
+++ b/frontend/src/components/calendars/EventForm.vue
@@ -82,8 +82,8 @@
       </v-card-text>
       <v-card-actions>
         <v-spacer />
-        <v-btn @click="close">{{ $gettext('Close') }}</v-btn>
-        <v-btn color="primary" type="submit">
+        <v-btn :loading="working" @click="close">{{ $gettext('Close') }}</v-btn>
+        <v-btn color="primary" type="submit" :loading="working">
           {{ $gettext('Save') }}
         </v-btn>
       </v-card-actions>
@@ -119,6 +119,7 @@ const userCalendars = ref([])
 const form = ref({})
 const formErrors = ref({})
 const formRef = ref()
+const working = ref(false)
 
 const title = computed(() => {
   return props.event ? $gettext('Edit event') : $gettext('New event')
@@ -148,7 +149,6 @@ watch(
         'yyyy-MM-dd HH:mm'
       )
       form.value.end = DateTime.fromISO(value.end).toFormat('yyyy-MM-dd HH:mm')
-      console.log(form.value)
       api.getAttendees().then((resp) => {
         attendees.value = resp.data
       })
@@ -166,17 +166,22 @@ async function saveEvent() {
   if (!valid) {
     return
   }
-  var data = JSON.parse(JSON.stringify(form.value))
-  if (!props.event) {
-    api.createUserEvent(form.value.calendar, data).then(() => {
-      busStore.displayNotification({ msg: $gettext('Event added') })
-      close()
-    })
-  } else {
-    api.patchUserEvent(form.value.calendar, props.event.id, data).then(() => {
-      busStore.displayNotification({ msg: $gettext('Event updated') })
-      close()
-    })
+  working.value = true
+  try {
+    var data = JSON.parse(JSON.stringify(form.value))
+    if (!props.event) {
+      api.createUserEvent(form.value.calendar, data).then(() => {
+        busStore.displayNotification({ msg: $gettext('Event added') })
+        close()
+      })
+    } else {
+      api.patchUserEvent(form.value.calendar, props.event.id, data).then(() => {
+        busStore.displayNotification({ msg: $gettext('Event updated') })
+        close()
+      })
+    }
+  } finally {
+    working.value = false
   }
 }
 
diff --git a/frontend/src/components/shared/TopMenu.vue b/frontend/src/components/shared/TopMenu.vue
index fc844b669..65f55a55f 100644
--- a/frontend/src/components/shared/TopMenu.vue
+++ b/frontend/src/components/shared/TopMenu.vue
@@ -78,9 +78,13 @@ const { $gettext } = useGettext()
 const applications = ref([])
 
 const userInitials = computed(() => {
-  return props.user.first_name && props.user.last_name
-    ? `${props.user.first_name[0].toUpperCase()}${props.user.last_name[0].toUpperCase()}`
-    : props.user.username.slice(0, 2).toUpperCase()
+  if (props.user.first_name && props.user.last_name) {
+    return `${props.user.first_name[0].toUpperCase()}${props.user.last_name[0].toUpperCase()}`
+  }
+  if (props.user.username) {
+    props.user.username.slice(0, 2).toUpperCase()
+  }
+  return ''
 })
 
 const userMenuItems = computed(() => {
diff --git a/frontend/src/layouts/admin/AdminLayout.vue b/frontend/src/layouts/admin/AdminLayout.vue
index e129947bc..09b7cb640 100644
--- a/frontend/src/layouts/admin/AdminLayout.vue
+++ b/frontend/src/layouts/admin/AdminLayout.vue
@@ -5,14 +5,12 @@
 <script setup>
 import { ref, computed, onMounted } from 'vue'
 import { useGettext } from 'vue3-gettext'
-import { useRouter } from 'vue-router'
 import { useAuthStore, useParametersStore } from '@/stores'
 import parametersApi from '@/api/parameters'
 import capabilitiesApi from '@/api/capabilities'
 import ConnectedLayout from '@/layouts/connected/ConnectedLayout.vue'
 
 const { $gettext } = useGettext()
-const router = useRouter()
 const authStore = useAuthStore()
 const parametersStore = useParametersStore()
 
diff --git a/frontend/src/layouts/webmail/WebmailLayout.vue b/frontend/src/layouts/webmail/WebmailLayout.vue
index e312094f7..d9626a614 100644
--- a/frontend/src/layouts/webmail/WebmailLayout.vue
+++ b/frontend/src/layouts/webmail/WebmailLayout.vue
@@ -149,11 +149,10 @@ function openMailbox(mailbox) {
   })
 }
 
-const fetchUserMailboxes = () => {
-  api.getUserMailboxes().then((resp) => {
-    userMailboxes.value = resp.data.mailboxes
-    hdelimiter.value = resp.data.hdelimiter
-  })
+const fetchUserMailboxes = async () => {
+  const resp = await api.getUserMailboxes()
+  userMailboxes.value = resp.data.mailboxes
+  hdelimiter.value = resp.data.hdelimiter
 }
 
 const openComposeForm = () => {
@@ -213,8 +212,7 @@ watch(
   }
 )
 
-fetchUserMailboxes()
-api.getUserMailboxQuota(route.query.mailbox || 'INBOX').then((resp) => {
-  mailboxQuota.value = resp.data
-})
+await fetchUserMailboxes()
+const resp = await api.getUserMailboxQuota(route.query.mailbox || 'INBOX')
+mailboxQuota.value = resp.data
 </script>
diff --git a/frontend/src/router/index.js b/frontend/src/router/index.js
index d12e30212..c11c7c43f 100644
--- a/frontend/src/router/index.js
+++ b/frontend/src/router/index.js
@@ -25,6 +25,9 @@ const routes = [
   {
     path: '/admin',
     component: () => import('@/layouts/admin/AdminLayout.vue'),
+    meta: {
+      allowedRoles: ['DomainAdmins', 'Resellers', 'SuperAdmins'],
+    },
     children: [
       {
         path: '',
@@ -287,6 +290,7 @@ const routes = [
         component: () => import('@/layouts/user/UserLayout.vue'),
         meta: {
           requiresAuth: true,
+          requiresMailbox: true,
         },
         children: [
           {
@@ -304,6 +308,7 @@ const routes = [
         component: () => import('@/layouts/user/UserLayout.vue'),
         meta: {
           requiresAuth: true,
+          requiresMailbox: true,
         },
         children: [
           {
@@ -312,6 +317,7 @@ const routes = [
             component: () => import('@/views/calendars/CalendarView.vue'),
             meta: {
               requiresAuth: true,
+              requiresMailbox: true,
             },
           },
         ],
@@ -321,6 +327,7 @@ const routes = [
         component: () => import('@/layouts/webmail/WebmailLayout.vue'),
         meta: {
           requiresAuth: true,
+          requiresMailbox: true,
         },
         children: [
           {
@@ -329,6 +336,7 @@ const routes = [
             component: () => import('@/views/webmail/MailboxView.vue'),
             meta: {
               requiresAuth: true,
+              requiresMailbox: true,
             },
           },
           {
@@ -337,6 +345,7 @@ const routes = [
             component: () => import('@/views/webmail/EmailView.vue'),
             meta: {
               requiresAuth: true,
+              requiresMailbox: true,
             },
           },
           {
@@ -345,6 +354,7 @@ const routes = [
             component: () => import('@/views/webmail/ComposeEmailView.vue'),
             meta: {
               requiresAuth: true,
+              requiresMailbox: true,
             },
           },
           {
@@ -353,6 +363,7 @@ const routes = [
             component: () => import('@/views/webmail/ReplyEmailView.vue'),
             meta: {
               requiresAuth: true,
+              requiresMailbox: true,
             },
           },
           {
@@ -361,6 +372,7 @@ const routes = [
             component: () => import('@/views/webmail/ForwardEmailView.vue'),
             meta: {
               requiresAuth: true,
+              requiresMailbox: true,
             },
           },
         ],
@@ -391,7 +403,7 @@ router.beforeEach(async (to, from, next) => {
     if (isAuth) {
       if (to.meta.allowedRoles !== undefined) {
         if (to.meta.allowedRoles.indexOf(authStore.authUser.role) === -1) {
-          next({ name: 'Dashboard' })
+          next({ name: 'AccountSettings' })
           return
         }
       }
diff --git a/frontend/src/stores/domains.store.js b/frontend/src/stores/domains.store.js
index 954b9af2b..d717accb3 100644
--- a/frontend/src/stores/domains.store.js
+++ b/frontend/src/stores/domains.store.js
@@ -5,7 +5,7 @@ import domainApi from '@/api/domains'
 
 export const useDomainsStore = defineStore('domains', () => {
   const domainsLoaded = ref(false)
-  const domains = ref({})
+  const domains = ref([])
 
   async function $reset() {
     domainsLoaded.value = false
diff --git a/frontend/src/views/account/ParametersView.vue b/frontend/src/views/account/ParametersView.vue
index 7fee58675..545650da7 100644
--- a/frontend/src/views/account/ParametersView.vue
+++ b/frontend/src/views/account/ParametersView.vue
@@ -14,7 +14,7 @@
 </template>
 
 <script setup>
-import { computed, ref } from 'vue'
+import { computed, ref, watch } from 'vue'
 import { useGettext } from 'vue3-gettext'
 import { useRoute } from 'vue-router'
 import ParametersForm from '@/components/tools/ParametersForm'
@@ -39,6 +39,10 @@ function loadParams(app) {
   })
 }
 
+watch(route, (toRoute) => {
+  loadParams(toRoute.params.app)
+})
+
 loadParams(route.params.app)
 </script>
 
diff --git a/frontend/src/views/admin/domains/DomainEditView.vue b/frontend/src/views/admin/domains/DomainEditView.vue
index b6a8b64ca..a0adccd5a 100644
--- a/frontend/src/views/admin/domains/DomainEditView.vue
+++ b/frontend/src/views/admin/domains/DomainEditView.vue
@@ -11,12 +11,15 @@ import DomainEditForm from '@/components/admin/domains/DomainEditForm'
 import { useRoute } from 'vue-router'
 import { ref } from 'vue'
 import domainsApi from '@/api/domains'
+import { useDomainsStore } from '@/stores'
 
 const { $gettext } = useGettext()
 const route = useRoute()
+const domainsStore = useDomainsStore()
 
 const domain = ref({})
 
+domainsStore.getDomains()
 domainsApi.getDomain(route.params.id).then((resp) => {
   domain.value = resp.data
 })
diff --git a/frontend/src/views/calendars/CalendarView.vue b/frontend/src/views/calendars/CalendarView.vue
index 32a6ad201..347a4bb08 100644
--- a/frontend/src/views/calendars/CalendarView.vue
+++ b/frontend/src/views/calendars/CalendarView.vue
@@ -252,8 +252,9 @@ async function deleteCalendar(calendarPk) {
   }
   await api.deleteUserCalendar(calendarPk)
   const fullc = calendarRef.value.getApi()
-  const evtSource = fullc.getEventSourceById(`user-${calendar.pk}`)
+  const evtSource = fullc.getEventSourceById(`user-${calendarPk}`)
   evtSource.remove()
+  fetchUserCalendars()
   busStore.displayNotification({ msg: $gettext('Calendar deleted') })
 }
 
diff --git a/modoboa/autoreply/migrations/0011_auto_20250609_0851.py b/modoboa/autoreply/migrations/0011_auto_20250609_0851.py
index b35b2f9ce..4609147dc 100644
--- a/modoboa/autoreply/migrations/0011_auto_20250609_0851.py
+++ b/modoboa/autoreply/migrations/0011_auto_20250609_0851.py
@@ -14,7 +14,7 @@ def cleanup_and_rename(apps, schema_editor):
     # Rename parameters
     LocalConfig = apps.get_model("core", "LocalConfig")
     cfg = LocalConfig.objects.first()
-    if not cfg:
+    if not cfg or "postfix_autoreply" not in cfg._parameters:
         return
     cfg._parameters["autoreply"] = copy.deepcopy(cfg._parameters["postfix_autoreply"])
     del cfg._parameters["postfix_autoreply"]