diff --git a/openslides/users/static/js/users/site.js b/openslides/users/static/js/users/site.js
index 34be843af..51ed5f779 100644
--- a/openslides/users/static/js/users/site.js
+++ b/openslides/users/static/js/users/site.js
@@ -561,6 +561,9 @@ angular.module('OpenSlidesApp.users.site', [
             return User.lastModified();
         }, function () {
             $scope.users = _.orderBy(User.getAll(), ['first_name']);
+            _.forEach($scope.users, function (user) {
+                user.has_last_email_send = !!user.last_email_send;
+            });
         });
         Group.bindAll({where: {id: {'>': 1}}}, $scope, 'groups');
         $scope.$watch(function () {
@@ -601,6 +604,12 @@ angular.module('OpenSlidesApp.users.site', [
                     choiceYes: gettext('Is a committee'),
                     choiceNo: gettext('Is not a committee'),
                 },
+                hasLastEmailSend: {
+                    value: undefined,
+                    displayName: gettext('Last email send'),
+                    choiceYes: gettext('Got an email'),
+                    choiceNo: gettext("Didn't get an email"),
+                },
             };
         }
         $scope.filter.propertyList = ['first_name', 'last_name', 'username', 'title',
@@ -765,9 +774,54 @@ angular.module('OpenSlidesApp.users.site', [
             $http.post('/rest/users/user/mass_invite_email/', {
                 user_ids: user_ids,
             }).then(function (success) {
+                var numEmails = success.data.count;
+                var noEmailIds = success.data.no_email_ids;
+                var type = 'success', msg;
+                if (numEmails === 0) {
+                    type = 'danger';
+                    msg = gettextCatalog.getString('No emails were send.');
+                } else if (numEmails === 1) {
+                    msg = gettextCatalog.getString('One email was send sucessfully.');
+                } else {
+                    msg = gettextCatalog.getString('%num% emails were send sucessfully.').replace('%num%', numEmails);
+                }
+
+                if (noEmailIds.length) {
+                    type = 'warning';
+                    msg += ' ';
+
+                    if (noEmailIds.length === 1) {
+                        msg += gettextCatalog.getString('The user %user% has no email, so the invitation email could not be send.');
+                    } else {
+                        msg += gettextCatalog.getString('The users %user% have no email, so the invitation emails could not be send.');
+                    }
+
+                    // This one builds a username string like "user1, user2 and user3" with the full names.
+                    var lastUsername, userString = _
+                        .chain(noEmailIds)
+                        .map(function (id) {
+                            var user = User.get(id);
+                            return user ? user.get_full_name() : '';
+                        })
+                        .filter(function (username) {
+                            return username;
+                        })
+                        .tap(function (names) {
+                            if (names.length !== 1) {
+                                lastUsername = names.pop();
+                            }
+                        })
+                        .join(', ')
+                        .thru(function (names) {
+                            return lastUsername ? names + ' ' + gettextCatalog.getString('and') + ' ' + lastUsername : names;
+                        })
+                        .value();
+                    msg = msg.replace('%user%', userString);
+                }
+
                 $scope.alert = {
-                    msg: gettextCatalog.getString('Send %num% emails sucessfully.').replace('%num%', success.data.count),
-                    type: 'success',
+                    msg: msg,
+                    type: type,
                     show: true,
                 };
                 $scope.isSelectMode = false;
diff --git a/openslides/users/static/templates/users/user-list.html b/openslides/users/static/templates/users/user-list.html
index 57a46b5d3..a7fa4822a 100644
--- a/openslides/users/static/templates/users/user-list.html
+++ b/openslides/users/static/templates/users/user-list.html
@@ -161,6 +161,7 @@
       | filter: {is_present: filter.booleanFilters.isPresent.value}
       | filter: {is_active: filter.booleanFilters.isActive.value}
       | filter: {is_committee: filter.booleanFilters.isCommittee.value}
+      | filter: {has_last_email_send: filter.booleanFilters.hasLastEmailSend.value}
       | MultiselectFilter: filter.multiselectFilters.group : getItemId.group
       | orderByEmptyLast: sort.column: sort.reverse)"></span>
   </div>
diff --git a/openslides/users/views.py b/openslides/users/views.py
index 6f9188508..aecfcd609 100644
--- a/openslides/users/views.py
+++ b/openslides/users/views.py
@@ -195,16 +195,22 @@ class UserViewSet(ModelViewSet):
             raise ValidationError({'detail': '{}: {}'.format(e.errno, e.strerror)})
 
         success_users = []
+        user_pks_without_email = []
         try:
             for user in users:
-                if user.send_invitation_email(connection, skip_autoupdate=True):
-                    success_users.append(user)
+                if user.email:
+                    if user.send_invitation_email(connection, skip_autoupdate=True):
+                        success_users.append(user)
+                else:
+                    user_pks_without_email.append(user.pk)
         except DjangoValidationError as e:
             raise ValidationError(e.message_dict)
 
         connection.close()
         inform_changed_data(success_users)
-        return Response({'count': len(success_users)})
+        return Response({
+            'count': len(success_users),
+            'no_email_ids': user_pks_without_email})
 
 
 class GroupViewSetMetadata(SimpleMetadata):