diff --git a/mod/admin.php b/mod/admin.php
index de981bb900..83ef15f4a0 100644
--- a/mod/admin.php
+++ b/mod/admin.php
@@ -11,6 +11,8 @@ use Friendica\Core\Config;
 use Friendica\Core\Worker;
 use Friendica\Database\DBM;
 use Friendica\Model\User;
+use Friendica\Network\Probe;
+use Friendica\Object\Contact;
 
 require_once 'include/enotify.php';
 require_once 'include/text.php';
@@ -117,6 +119,9 @@ function admin_post(App $a)
 			case 'dbsync':
 				admin_page_dbsync_post($a);
 				break;
+			case 'contactblock':
+				admin_page_contactblock_post($a);
+				break;
 			case 'blocklist':
 				admin_page_blocklist_post($a);
 				break;
@@ -179,6 +184,7 @@ function admin_content(App $a)
 		'features'     => array("admin/features/"    , t("Additional features")  , "features"),
 		'dbsync'       => array("admin/dbsync/"      , t('DB updates')           , "dbsync"),
 		'queue'        => array("admin/queue/"       , t('Inspect Queue')        , "queue"),
+		'contactblock' => array("admin/contactblock/", t('Contact Blocklist')    , "contactblock"),
 		'blocklist'    => array("admin/blocklist/"   , t('Server Blocklist')     , "blocklist"),
 		'federation'   => array("admin/federation/"  , t('Federation Statistics'), "federation"),
 		'deleteitem'   => array("admin/deleteitem/"  , t('Delete Item')          , 'deleteitem'),
@@ -247,6 +253,9 @@ function admin_content(App $a)
 			case 'federation':
 				$o = admin_page_federation($a);
 				break;
+			case 'contactblock':
+				$o = admin_page_contactblock($a);
+				break;
 			case 'blocklist':
 				$o = admin_page_blocklist($a);
 				break;
@@ -359,6 +368,90 @@ function admin_page_blocklist_post(App $a)
 	return; // NOTREACHED
 }
 
+/**
+ * @brief Process data send by the contact block admin page
+ *
+ * @param App $a
+ */
+function admin_page_contactblock_post(App $a)
+{
+	$contact_url = x($_POST, 'contact_url') ? $_POST['contact_url'] : '';
+	$contacts    = x($_POST, 'contacts')    ? $_POST['contacts']    : [];
+
+	check_form_security_token_redirectOnErr('/admin/contactblock', 'admin_contactblock');
+
+	if (x($_POST, 'page_contactblock_block')) {
+		$net = Probe::uri($contact_url);
+		if (in_array($net['network'], array(NETWORK_PHANTOM, NETWORK_MAIL))) {
+			notice(t('This contact doesn\'t seem to exist.'));
+		}
+		$nurl = normalise_link($net['url']);
+		$r = dba::select('contact', ['id'], ['nurl' => $nurl, 'uid' => 0], ['limit' => 1]);
+		if (DBM::is_result($r)) {
+			Contact::block($r['id']);
+			notice(t('The contact has been blocked from the node'));
+		} else {
+			notice(t('Could not find any contact entry for this URL (%s)', $nurl));
+		}
+	}
+	if (x($_POST, 'page_contactblock_unblock')) {
+		foreach ($contacts as $uid) {
+			Contact::unblock($uid);
+		}
+		notice(tt("%s contact unblocked", "%s contacts unblocked", count($contacts)));
+	}
+	goaway('admin/contactblock');
+	return; // NOTREACHED
+}
+
+/**
+ * @brief Admin panel for server-wide contact block
+ *
+ * @param App $a
+ * @return string
+ */
+function admin_page_contactblock(App $a)
+{
+	$condition = ['uid' => 0, 'blocked' => true];
+
+	$total = dba::count('contact', $condition);
+
+	$a->set_pager_total($total);
+	$a->set_pager_itemspage(30);
+
+	$statement = dba::select('contact', [], $condition, ['limit' => [$a->pager['start'], $a->pager['itemspage']]]);
+
+	$contacts = dba::inArray($statement);
+
+	$t = get_markup_template('admin/contactblock.tpl');
+	$o = replace_macros($t, array(
+		// strings //
+		'$title'       => t('Administration'),
+		'$page'        => t('Remote Contact Blocklist'),
+		'$description' => t('This page allows you to prevent any message from a remote contact to reach your node. However, your node must have knowledge of the contact before you can block it.'),
+		'$submit'      => t('Block Remote Contact'),
+		'$select_all'  => t('select all'),
+		'$select_none' => t('select none'),
+		'$block'       => t('Block'),
+		'$unblock'     => t('Unblock'),
+		'$no_data'     => t('No remote contact is blocked from this node.'),
+
+		'$h_contacts'  => t('Blocked Remote Contacts'),
+		'$h_newblock'  => t('Block New Remote Contact'),
+		'$th_contacts' => [t('Photo'), t('Name'), t('Address'), t('Profile URL')],
+
+		'$form_security_token' => get_form_security_token("admin_contactblock"),
+
+		// values //
+		'$baseurl'    => System::baseUrl(true),
+
+		'$contacts'   => $contacts,
+		'$paginate'   => paginate($a),
+		'$contacturl' => ['contact_url', t("Profile URL"), '', t("URL of the remote contact to block.")],
+	));
+	return $o;
+}
+
 /**
  * @brief Subpage where the admin can delete an item from their node given the GUID
  *
diff --git a/view/templates/admin/contactblock.tpl b/view/templates/admin/contactblock.tpl
new file mode 100644
index 0000000000..dcd33e8793
--- /dev/null
+++ b/view/templates/admin/contactblock.tpl
@@ -0,0 +1,64 @@
+
+<script>
+	function selectall(cls) {
+		$('.' + cls).prop('checked', true);
+		return false;
+	}
+	function selectnone(cls) {
+		$('.' + cls).prop('checked', false);
+		return false;
+	}
+</script>
+<div id="adminpage">
+	<h1>{{$title}} - {{$page}}</h1>
+	<p>{{$description}}</p>
+	<form action="{{$baseurl}}/admin/contactblock" method="post">
+        <input type="hidden" name="form_security_token" value="{{$form_security_token}}">
+
+		<h3>{{$h_contacts}}</h3>
+	{{if $contacts}}
+		<table id="contactblock">
+			<thead>
+				<tr>
+					<th></th>
+						{{foreach $th_contacts as $th}}
+					<th>
+						{{$th}}
+					</th>
+					{{/foreach}}
+					<th></th>
+				</tr>
+			</thead>
+			<tbody>
+				{{foreach $contacts as $contact}}
+				<tr>
+					<td class="checkbox"><input type="checkbox" class="contacts_ckbx" id="id_contact_{{$contact.id}}" name="contacts[]" value="{{$contact.id}}"/></td>
+					<td><img class="icon" src="{{$contact.micro}}" alt="{{$contact.nickname}}" title="{{$contact.nickname}}"></td>
+					<td class="name">{{$contact.name}}</td>
+					<td class="addr">{{$contact.addr}}</td>
+					<td class="addr"><a href="{{$contact.url}}" title="{{$contact.nickname}}" >{{$contact.url}}</a></td>
+				</tr>
+				{{/foreach}}
+			</tbody>
+		</table>
+		<p><a href="#" onclick="return selectall('contacts_ckbx');">{{$select_all}}</a> | <a href="#" onclick="return selectnone('contacts_ckbx');">{{$select_none}}</a></p>
+		{{$paginate}}
+		<div class="submit"><input type="submit" name="page_contactblock_unblock" value="{{$unblock|escape:'html'}}" /></div>
+	{{else}}
+		<p>{{$no_data|escape:'html'}}</p>
+	{{/if}}
+	</form>
+
+	<h3>{{$h_newblock}}</h3>
+	<form action="{{$baseurl}}/admin/contactblock" method="post">
+		<input type="hidden" name="form_security_token" value="{{$form_security_token}}">
+		<table id="contactblock">
+			<tbody>
+				<tr>
+					<td>{{include file="field_input.tpl" field=$contacturl}}</td>
+				</tr>
+			</tbody>
+		</table>
+		<div class="submit"><input type="submit" name="page_contactblock_block" value="{{$submit|escape:'html'}}" /></div>
+	</form>
+</div>
diff --git a/view/theme/frio/templates/admin/contactblock.tpl b/view/theme/frio/templates/admin/contactblock.tpl
new file mode 100644
index 0000000000..db0d2ed9db
--- /dev/null
+++ b/view/theme/frio/templates/admin/contactblock.tpl
@@ -0,0 +1,63 @@
+
+<script>
+	function selectall(cls) {
+		$('.' + cls).prop('checked', true);
+		return false;
+	}
+	function selectnone(cls) {
+		$('.' + cls).prop('checked', false);
+		return false;
+	}
+</script>
+<div id="adminpage">
+	<h1>{{$title}} - {{$page}}</h1>
+	<p>{{$description}}</p>
+	<form action="{{$baseurl}}/admin/contactblock" method="post">
+        <input type="hidden" name="form_security_token" value="{{$form_security_token}}">
+
+		<h3>{{$h_contacts}}</h3>
+	{{if $contacts}}
+		<table id="contactblock" class="table table-condensed table-striped">
+			<thead>
+				<tr>
+					<th></th>
+						{{foreach $th_contacts as $th}}
+					<th>
+						{{$th}}
+					</th>
+					{{/foreach}}
+					<th></th>
+				</tr>
+			</thead>
+			<tbody>
+				{{foreach $contacts as $contact}}
+				<tr>
+					<td><input type="checkbox" class="contacts_ckbx" id="id_contact_{{$contact.id}}" name="contacts[]" value="{{$contact.id}}"/></td>
+					<td><img class="icon" src="{{$contact.micro}}" alt="{{$contact.nickname}}" title="{{$contact.addr}}"></td>
+					<td class="name">{{$contact.name}}</td>
+					<td class="addr" colspan="2"><a href="{{$contact.url}}" title="{{$contact.addr}}" >{{$contact.url}}</a></td>
+				</tr>
+				{{/foreach}}
+			</tbody>
+		</table>
+		<p><a href="#" onclick="return selectall('contacts_ckbx');">{{$select_all}}</a> | <a href="#" onclick="return selectnone('contacts_ckbx');">{{$select_none}}</a></p>
+		{{$paginate}}
+		<div class="submit"><input type="submit" name="page_contactblock_unblock" value="{{$unblock|escape:'html'}}" /></div>
+	{{else}}
+		<p>{{$no_data|escape:'html'}}</p>
+	{{/if}}
+	</form>
+
+	<h3>{{$h_newblock}}</h3>
+	<form action="{{$baseurl}}/admin/contactblock" method="post">
+		<input type="hidden" name="form_security_token" value="{{$form_security_token}}">
+		<table id="contactblock">
+			<tbody>
+				<tr>
+					<td>{{include file="field_input.tpl" field=$contacturl}}</td>
+				</tr>
+			</tbody>
+		</table>
+		<div class="submit"><input type="submit" name="page_contactblock_block" value="{{$submit|escape:'html'}}" /></div>
+	</form>
+</div>