operator: hide Email section

operator cannot list domains

src/views/app.html

@@ -514,7 +514,7 @@
         <div ng-click="setView('storage')" ng-class="{ 'active': view === 'storage' }" ng-show="app.accessLevel === 'admin'">{{ 'app.storageTabTitle' | tr }}</div>
         <div ng-click="setView('graphs')" ng-class="{ 'active': view === 'graphs' }">{{ 'app.graphsTabTitle' | tr }}</div>
         <div ng-click="setView('security')" ng-class="{ 'active': view === 'security' }">{{ 'app.securityTabTitle' | tr }}</div>
-        <div ng-click="setView('email')" ng-class="{ 'active': view === 'email' }" ng-show="app.manifest.addons.sendmail || app.manifest.addons.recvmail">{{ 'app.emailTabTitle' | tr }}</div>
+        <div ng-click="setView('email')" ng-class="{ 'active': view === 'email' }" ng-show="app.accessLevel === 'admin' && (app.manifest.addons.sendmail || app.manifest.addons.recvmail)">{{ 'app.emailTabTitle' | tr }}</div>
         <div ng-click="setView('eventlog')" ng-class="{ 'active': view === 'eventlog' }">{{ 'app.eventlogTabTitle' | tr }}</div>
         <div ng-click="setView('updates')" ng-class="{ 'active': view === 'updates' }">{{ 'app.updatesTabTitle' | tr }}</div>
         <div ng-click="setView('backups')" ng-class="{ 'active': view === 'backups' }">{{ 'app.backupsTabTitle' | tr }}</div>