[enh] Add check MX and 25 port

src/locales/en.json

@@ -180,6 +180,9 @@
     "write" : "Write",
     "monitoring_disabled" : "Monitoring is not enabled.",
     "monitoring_check_glances" : "Check <a href='#/services/glances'>glances</a> service status.",
+    "check" : "Check",
+    "check_stmp" : "Check 25 port access : ",
+    "check_mx" : "Check the MX record : ",
 
     "services" : "Services",
     "services_list" : "Services list",

src/views/monitor/monitor.ms

@@ -24,6 +24,31 @@
 
 <div class="panel-group" id="accordion">
 
+    <div class="panel panel-default">
+        <div class="panel-heading">
+            <h2 class="panel-title">
+                <span class="fa-fw fa-check-square-o"></span>
+                <a data-toggle="collapse" data-parent="#accordion" href="#check">{{t 'check'}}</a>
+            </h2>
+        </div>
+        <div id="check" class="panel-collapse collapse">
+            <div class="panel-body">
+                <b>{{t 'check_stmp'}}</b>{{network.check.smtp_check}}
+                <br>
+                <b>{{t 'check_mx'}}</b>
+                {{#if network.check.mx_check.mx0}} 
+                <ul>
+                    {{#each network.check.mx_check}}
+                            <li>{{this}}</li>
+                    {{/each}}
+                </ul>
+                {{else}}
+                          {{network.check.mx_check}}
+                {{/if}}
+            </div>
+        </div>
+    </div>
+
     <div class="panel panel-default">
         <div class="panel-heading">
             <h2 class="panel-title">