diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index 640da0f5f..9d2d7bdda 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -35,6 +35,7 @@
 
 <script>
 import { mapGetters } from 'vuex'
+import alarms from '@/api/alarms'
 import { bus } from '@/main'
 import Navbar from '@/components/layout/Navbar'
 
@@ -51,12 +52,21 @@ export default {
   created () {
     // this.$store.dispatch('auth/initialize')
     bus.$on('notification', this.showNotification)
+    bus.$on('logged', this.checkAlarms)
+  },
+  mounted () {
+    this.checkAlarms()
+  },
+  beforeDestroy () {
+    clearInterval(this.alarmChecker)
   },
   data: () => ({
     snackbar: false,
     notification: '',
     notificationColor: 'success',
-    notificationTimeout: 2000
+    notificationTimeout: 2000,
+    alarmNotified: [],
+    alarmChecker: null
   }),
   methods: {
     showNotification (options) {
@@ -65,6 +75,24 @@ export default {
         this.notificationColor = (options.type) ? options.type : 'success'
         this.snackbar = true
       }
+    },
+    checkAlarms () {
+      if (this.isAuthenticated) {
+        this.alarmChecker = window.setInterval(() => {
+          alarms.getAll({}).then(resp => {
+            let count = 0
+            for (const alarm of resp.data) {
+              if (alarm.status === 1 && !this.alarmNotified.includes(alarm.id)) {
+                count++
+                this.alarmNotified.push(alarm.id)
+              }
+            }
+            if (count !== 0) {
+              bus.$emit('notification', { msg: this.$gettext('You have one or more opened alarms'), type: 'error' })
+            }
+          })
+        }, 10000)
+      }
     }
   }
 }
diff --git a/frontend/src/api/alarms.js b/frontend/src/api/alarms.js
index aa655bc31..be141dd3c 100644
--- a/frontend/src/api/alarms.js
+++ b/frontend/src/api/alarms.js
@@ -5,5 +5,11 @@ const resource = 'alarms'
 export default {
   getAll (params) {
     return repository.get(`${resource}/`, { params })
+  },
+  switchStatus (alarmId, data) {
+    return repository.patch(`${resource}/${alarmId}/switch/`, data)
+  },
+  delete (alarmId) {
+    return repository.delete(`${resource}/${alarmId}/`)
   }
 }
diff --git a/frontend/src/components/alarms/AlarmList.vue b/frontend/src/components/alarms/AlarmList.vue
index b7c6891b2..5b79ed678 100644
--- a/frontend/src/components/alarms/AlarmList.vue
+++ b/frontend/src/components/alarms/AlarmList.vue
@@ -8,6 +8,7 @@
         </v-btn>
       </template>
       <v-list dense>
+        <menu-items :items="getActionMenuItems()"/>
       </v-list>
     </v-menu>
     <v-spacer></v-spacer>
@@ -26,7 +27,7 @@
     :headers="headers"
     :items="alarms"
     :search="search"
-    item-key="pk"
+    item-key="id"
     :options.sync="options"
     :server-items-length="totalAlarms"
     :loading="loading"
@@ -53,18 +54,39 @@
       <template v-if="item.mailbox">
         {{ item.mailbox.address }}@{{ item.domain.name }}
       </template>
+      <template v-else>
+        /
+      </template>
     </template>
     <template v-slot:item.created="{ item }">
       {{ item.created|date }}
     </template>
+    <template v-slot:item.actions="{ item }">
+      <div class="text-right">
+        <v-menu offset-y>
+          <template v-slot:activator="{ on, attrs }">
+            <v-btn icon v-bind="attrs" v-on="on">
+              <v-icon>mdi-dots-horizontal</v-icon>
+            </v-btn>
+          </template>
+          <menu-items :items="getMenuItems(item)" :object="item" />
+        </v-menu>
+      </div>
+    </template>
   </v-data-table>
 </v-card>
 </template>
 
 <script>
+import { bus } from '@/main'
 import alarms from '@/api/alarms'
 import debounce from 'debounce'
+import MenuItems from '@/components/tools/MenuItems'
+
 export default {
+  components: {
+    MenuItems
+  },
   data () {
     return {
       alarms: [],
@@ -73,7 +95,8 @@ export default {
         { text: this.$gettext('Status'), value: 'status' },
         { text: this.$gettext('Domain'), value: 'domain.name', sortable: false },
         { text: this.$gettext('Mailbox'), value: 'mailbox', sortable: false },
-        { text: this.$gettext('Message'), value: 'title' }
+        { text: this.$gettext('Message'), value: 'title' },
+        { text: this.$gettext('Actions'), value: 'actions', sortable: false, align: 'right' }
       ],
       loading: true,
       options: {},
@@ -83,6 +106,9 @@ export default {
     }
   },
   methods: {
+    sleep (milliseconds) {
+      return new Promise((resolve) => setTimeout(resolve, milliseconds))
+    },
     fetchAlarms () {
       const params = {
         page: this.options.page
@@ -95,10 +121,57 @@ export default {
       }
       this.loading = true
       alarms.getAll(params).then(resp => {
-        this.alarms = resp.data.results
+        this.alarms = resp.data
         this.totalAlarms = resp.data.count
         this.loading = false
       })
+    },
+    async deleteAlarm (alarm, single = true) {
+      alarms.delete(alarm.id).then(() => {
+        if (single) {
+          bus.$emit('notification', { msg: this.$gettext('Alarm deleted') })
+          this.fetchAlarms()
+        }
+      })
+    },
+    async closeAlarm (alarm) {
+      alarms.switchStatus(alarm.id, { status: 2 }).then(() => {
+        bus.$emit('notification', { msg: this.$gettext('Alarm closed') })
+        this.fetchAlarms()
+      })
+    },
+    async openAlarm (alarm) {
+      alarms.switchStatus(alarm.id, { status: 1 }).then(() => {
+        bus.$emit('notification', { msg: this.$gettext('Alarm re-opened') })
+        this.fetchAlarms()
+      })
+    },
+    async deleteAlarms () {
+      for (const alarm of this.selected) {
+        this.deleteAlarm(alarm, false)
+        await this.sleep(100)
+      }
+      bus.$emit('notification', { msg: this.$gettext('Alarms deleted') })
+      this.selected = []
+      this.fetchAlarms()
+    },
+    getMenuItems (item) {
+      const result = []
+      result.push({ label: this.$gettext('Delete'), icon: 'mdi-delete-outline', onClick: this.deleteAlarm, color: 'red' })
+      if (item.status === 1) {
+        result.push({ label: this.$gettext('Close alarm'), icon: 'mdi-check', onClick: this.closeAlarm, color: 'green' })
+      } else {
+        result.push({ label: this.$gettext('Reopen alarm'), icon: 'mdi-alert-circle-outline', onClick: this.openAlarm, color: 'orange' })
+      }
+      return result
+    },
+    getActionMenuItems () {
+      const result = []
+      if (this.selected.length > 0) {
+        result.push({ label: this.$gettext('Delete'), icon: 'mdi-delete-outline', onClick: this.deleteAlarms, color: 'red' })
+      }
+      result.push({ label: 'Reload', icon: 'mdi-reload', onClick: this.fetchAlarms })
+      return result
     }
   },
   mounted () {
diff --git a/frontend/src/views/Login.vue b/frontend/src/views/Login.vue
index 4141c18eb..1fc8b31a3 100644
--- a/frontend/src/views/Login.vue
+++ b/frontend/src/views/Login.vue
@@ -58,6 +58,7 @@
 </template>
 
 <script>
+import { bus } from '@/main'
 import Cookies from 'js-cookie'
 import auth from '@/api/auth'
 
@@ -86,6 +87,7 @@ export default {
         Cookies.set('token', resp.data.access, { sameSite: 'strict' })
         Cookies.set('refreshToken', resp.data.refresh, { sameSite: 'strict' })
         this.$store.dispatch('auth/initialize').then(() => {
+          bus.$emit('logged')
           this.$router.push({ name: 'DomainList' })
         })
       }).catch(err => {
diff --git a/frontend/vue.config.js b/frontend/vue.config.js
index 3ceebaec0..c0e75e1bc 100644
--- a/frontend/vue.config.js
+++ b/frontend/vue.config.js
@@ -5,7 +5,7 @@ module.exports = {
         target:
           process.env.DOCKER == "yes"
             ? "http://api:8000/"
-            : "http://localhost:8000",
+            : "http://127.0.0.1:8000",
       },
     },
   },
diff --git a/modoboa/admin/api/v2/serializers.py b/modoboa/admin/api/v2/serializers.py
index 84bccec49..1f4205535 100644
--- a/modoboa/admin/api/v2/serializers.py
+++ b/modoboa/admin/api/v2/serializers.py
@@ -225,6 +225,10 @@ class AdminGlobalParametersSerializer(serializers.Serializer):
                 raise serializers.ValidationError(
                     _("Directory not found.")
                 )
+            if not os.access(value, os.W_OK):
+                raise serializers.ValidationError(
+                    _("Directory non-writable")
+                )
             code, output = exec_cmd("which openssl")
             if code:
                 raise serializers.ValidationError(
@@ -588,3 +592,14 @@ class AlarmSerializer(serializers.ModelSerializer):
         depth = 1
         fields = "__all__"
         model = models.Alarm
+
+
+class AlarmSwitchStatusSerializer(serializers.Serializer):
+    """Serializer to switch the status of an Alarm."""
+
+    status = serializers.IntegerField()
+
+    def validate(self, data):
+        if data["status"] not in [constants.ALARM_OPENED, constants.ALARM_CLOSED]:
+            raise ValidationError(_("Unknown status"))
+        return data
diff --git a/modoboa/admin/api/v2/viewsets.py b/modoboa/admin/api/v2/viewsets.py
index f21348c84..e6ee407ab 100644
--- a/modoboa/admin/api/v2/viewsets.py
+++ b/modoboa/admin/api/v2/viewsets.py
@@ -10,7 +10,7 @@ from rest_framework import (
     filters, mixins, parsers, pagination, permissions, response, status, viewsets
 )
 from rest_framework.decorators import action
-from rest_framework.exceptions import PermissionDenied
+from rest_framework.exceptions import PermissionDenied, ValidationError
 
 from modoboa.admin.api.v1 import viewsets as v1_viewsets
 from modoboa.core import models as core_models
@@ -20,6 +20,7 @@ from modoboa.lib.throttle import GetThrottleViewsetMixin
 
 from ... import lib
 from ... import models
+from ... import constants
 from . import serializers
 
 
@@ -325,7 +326,10 @@ class UserAccountViewSet(GetThrottleViewsetMixin, viewsets.ViewSet):
         return response.Response(serializer.validated_data)
 
 
-class AlarmViewSet(GetThrottleViewsetMixin, viewsets.ReadOnlyModelViewSet):
+class AlarmViewSet(GetThrottleViewsetMixin,
+                   mixins.ListModelMixin,
+                   mixins.RetrieveModelMixin,
+                   viewsets.GenericViewSet):
     """Viewset for Alarm."""
 
     filter_backends = (filters.OrderingFilter, filters.SearchFilter, )
@@ -342,3 +346,35 @@ class AlarmViewSet(GetThrottleViewsetMixin, viewsets.ReadOnlyModelViewSet):
             domain__in=models.Domain.objects.get_for_admin(
                 self.request.user)
         ).order_by("-created")
+
+    @action(methods=["delete"], detail=True)
+    def delete(self, request, **kwargs):
+        """Custom delete method that accepts body arguments."""
+        alarm = self.get_object()
+        domain = models.Domain.objects.filter(pk=alarm.domain.pk)
+        if not domain.exists():
+            alarm.delete()
+        if not request.user.can_access(domain):
+            raise PermissionDenied(_("You don't have access to this domain"))
+        else:
+            alarm.delete()
+        return response.Response(status=status.HTTP_204_NO_CONTENT)
+
+    @action(methods=['patch'], detail=True)
+    def switch(self, request, **kwargs):
+        """Custom update method that switch status of an alarm."""
+        alarm = self.get_object()
+        serializer = serializers.AlarmSwitchStatusSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        domain = models.Domain.objects.filter(pk=alarm.domain.pk)
+        if not domain.exists():
+            alarm.delete()
+            raise ValidationError(_("No alarm found"))
+        if not request.user.can_access(domain):
+            raise PermissionDenied(_("You don't have access to this domain"))
+        else:
+            if serializer.data["status"] == constants.ALARM_CLOSED:
+                alarm.close()
+            else:
+                alarm.reopen()
+        return response.Response(status=status.HTTP_204_NO_CONTENT)
diff --git a/modoboa/admin/constants.py b/modoboa/admin/constants.py
index 18480ab29..c1272c052 100644
--- a/modoboa/admin/constants.py
+++ b/modoboa/admin/constants.py
@@ -35,6 +35,8 @@ DKIM_KEY_LENGTHS = [
     (4096, "4096"),
 ]
 
+DKIM_WRITE_ERROR = "DKIM path error"
+
 ALARM_OPENED = 1
 ALARM_CLOSED = 2
 
diff --git a/modoboa/admin/management/commands/subcommands/_manage_dkim_keys.py b/modoboa/admin/management/commands/subcommands/_manage_dkim_keys.py
index 0bc9e6f4e..bd810bd09 100644
--- a/modoboa/admin/management/commands/subcommands/_manage_dkim_keys.py
+++ b/modoboa/admin/management/commands/subcommands/_manage_dkim_keys.py
@@ -4,12 +4,14 @@ import os
 
 from django.core.management.base import BaseCommand
 from django.utils.encoding import smart_text
+from django.utils.translation import ugettext as _
 
 from modoboa.lib import sysutils
 from modoboa.parameters import tools as param_tools
 
 from .... import models
 from .... import signals
+from ....constants import DKIM_WRITE_ERROR, ALARM_OPENED
 
 
 class ManageDKIMKeys(BaseCommand):
@@ -19,6 +21,25 @@ class ManageDKIMKeys(BaseCommand):
         """Create a new DKIM key."""
         storage_dir = param_tools.get_global_parameter("dkim_keys_storage_dir")
         pkey_path = os.path.join(storage_dir, "{}.pem".format(domain.name))
+        alarm_qset = models.alarm.Alarm.objects.filter(
+                        domain=domain.pk,
+                        internal_name=DKIM_WRITE_ERROR)
+        if not os.access(storage_dir, os.W_OK):
+            if not alarm_qset:
+                alarm = models.alarm.Alarm.objects.create(
+                    domain=domain,
+                    title=_("DKIM path non-writable"),
+                    internal_name=DKIM_WRITE_ERROR
+                    )
+                alarm.save()
+            else:
+                alarm = alarm_qset.first()
+                if alarm.status != ALARM_OPENED:
+                    alarm.status = ALARM_OPENED
+                    alarm.save()
+            return
+        elif alarm_qset:
+            alarm_qset.first().close()
         key_size = (
             domain.dkim_key_length if domain.dkim_key_length
             else self.default_key_length)
diff --git a/modoboa/admin/models/alarm.py b/modoboa/admin/models/alarm.py
index 8168fe51d..03509f32a 100644
--- a/modoboa/admin/models/alarm.py
+++ b/modoboa/admin/models/alarm.py
@@ -51,5 +51,11 @@ class Alarm(models.Model):
         self.closed = timezone.now()
         self.save()
 
+    def reopen(self):
+        """Reopen this alarm."""
+        self.status = constants.ALARM_OPENED
+        self.closed = None
+        self.save()
+
 
 reversion.register(Alarm)