--- loncom/interface/loncommunicate.pm	2012/04/18 19:56:59	1.47
+++ loncom/interface/loncommunicate.pm	2022/01/18 17:33:13	1.48
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Communicate
 #
-# $Id: loncommunicate.pm,v 1.47 2012/04/18 19:56:59 raeburn Exp $
+# $Id: loncommunicate.pm,v 1.48 2022/01/18 17:33:13 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -46,7 +46,23 @@ sub menu {
             $usertype = 'member';
         }   
     }
-	
+
+    my $clientip = &Apache::lonnet::get_requestor_ip($r);
+    my %setters;
+    my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
+        &Apache::loncommon::blockcheck(\%setters,'com',$clientip);
+    if ($by_ip) {
+        my $showdom = &Apache::lonnet::domain($blockdom);
+        if ($showdom eq '') {
+            $showdom = $blockdom;
+        }
+        $r->print('<p class="LC_warning">'.
+                  &mt('Sending of LON-CAPA messages is blocked for your current IP address: [_1].',$clientip).'</p>'.
+                  '<ul><li>'.&mt('Note: communication is being blocked for certain IP address(es).').
+                  '</li><li>'.
+                  &mt('This restriction was set by an administrator in the [_1] LON-CAPA domain.',$showdom).
+                  '</li></ul><br />');
+    }
 
 # ------------------------------------------------------------------------ Menu
     my ($can_srm,$can_dcm,$can_dff);
@@ -66,11 +82,13 @@ sub menu {
                                            $env{'request.course.sec'}))) {
             $can_dff = 1;
         }
-    }   
+    }
 
-	my @reports = (
-	    {categorytitle => 'Send Messages',
-         items => [
+    my @reports;
+    unless ($by_ip) {
+        @reports = (
+            {categorytitle => 'Send Messages',
+             items => [
             {url => '/adm/email?compose=individual',
 			 permission => 'F',
 			 icon => 'mail-message-new.png',
@@ -89,12 +107,13 @@ sub menu {
              icon => 'fromfile.png',
              linktext => 'New Messages from File',
 			 linktitle => 'Create a message from file and send to users.'},
-         ]},
-		);
+             ]},
+        );
+    }
 		
-		if ($can_dff || $can_dcm ){
-		push(@reports,{categorytitle => 'Message Administration',
-         items => [
+    if ($can_dff || $can_dcm ){
+        push(@reports,{categorytitle => 'Message Administration',
+             items => [
             {url => '/adm/email?recordftf=query',
 			 permission => "$can_dff",
              icon => 'messalog.png',
@@ -107,10 +126,12 @@ sub menu {
              icon => 'comblock.png',
 			 linktext => 'Communication Blocking',
              linktitle => "Blocking of $usertype communication during exams."},
-         ]});
-        }
-$r->print(&Apache::lonhtmlcommon::generate_menu(@reports));
-
+             ]});
+    }
+    if (@reports) {
+        $r->print(&Apache::lonhtmlcommon::generate_menu(@reports));
+    }
+    return;
 }
 
 sub handler {