diff --git a/NEWS b/NEWS
index 85f64f0d12..4d1b07c801 100644
--- a/NEWS
+++ b/NEWS
@@ -15,6 +15,7 @@ Bug fixes
  - [web] respect SOGoLanguage and SOGoSupportedLanguages (#4169)
  - [web] fixed adding list members with multiple email addresses
  - [web] fixed responsive condition of login page (960px to 1023px)
+ - [core] newly subscribed calendars are excluded from freebusy (#3354)
 
 3.2.9 (2017-05-09)
 ------------------
diff --git a/SoObjects/Appointments/SOGoAppointmentFolder.m b/SoObjects/Appointments/SOGoAppointmentFolder.m
index 0d3f9b0308..54697cb1de 100644
--- a/SoObjects/Appointments/SOGoAppointmentFolder.m
+++ b/SoObjects/Appointments/SOGoAppointmentFolder.m
@@ -420,6 +420,93 @@ - (void) setShowCalendarTasks: (BOOL) new
                     inCategory: @"FolderShowTasks"];    
 }
 
+- (BOOL) subscribeUserOrGroup: (NSString *) theIdentifier
+		     reallyDo: (BOOL) reallyDo
+                     response: (WOResponse *) theResponse
+{
+  NSMutableDictionary *moduleSettings, *folderShowAlarms, *freeBusyExclusions;
+  NSString *subscriptionPointer;
+  NSMutableArray *allUsers;
+  SOGoUserSettings *us;
+  NSDictionary *dict;
+  SOGoUser *sogoUser;
+  BOOL rc;
+  int i;
+
+  rc = [super subscribeUserOrGroup: theIdentifier reallyDo: reallyDo response: theResponse];
+
+  if (rc)
+    {
+      dict = [[SOGoUserManager sharedUserManager] contactInfosForUserWithUIDorEmail: theIdentifier];
+
+      if ([[dict objectForKey: @"isGroup"] boolValue])
+        {
+          SOGoGroup *aGroup;
+
+          aGroup = [SOGoGroup groupWithIdentifier: theIdentifier
+                                         inDomain: [[context activeUser] domain]];
+          allUsers = [NSMutableArray arrayWithArray: [aGroup members]];
+
+          // We remove the active user from the group (if present) in order to
+          // not subscribe him to their own resource!
+          [allUsers removeObject: [context activeUser]];
+        }
+      else
+        {
+          sogoUser = [SOGoUser userWithLogin: theIdentifier roles: nil];
+
+          if (sogoUser)
+            allUsers = [NSArray arrayWithObject: sogoUser];
+          else
+            allUsers = [NSArray array];
+        }
+
+      for (i = 0; i < [allUsers count]; i++)
+        {
+          sogoUser = [allUsers objectAtIndex: i];
+          us = [sogoUser userSettings];
+          moduleSettings = [us objectForKey: [container nameInContainer]];
+          if (!(moduleSettings
+                && [moduleSettings isKindOfClass: [NSMutableDictionary class]]))
+            {
+              moduleSettings = [NSMutableDictionary dictionary];
+              [us setObject: moduleSettings forKey: [container nameInContainer]];
+            }
+
+          subscriptionPointer = [self folderReference];
+
+          folderShowAlarms = [moduleSettings objectForKey: @"FolderShowAlarms"];
+          freeBusyExclusions = [moduleSettings objectForKey: @"FreeBusyExclusions"];
+
+          if (reallyDo)
+            {
+              if (!(folderShowAlarms
+                    && [folderShowAlarms isKindOfClass: [NSMutableDictionary class]]))
+                {
+                  folderShowAlarms = [NSMutableDictionary dictionary];
+                  [moduleSettings setObject: folderShowAlarms
+                                     forKey: @"FolderShowAlarms"];
+                }
+
+              // By default, we disable alarms on subscribed calendars
+              [folderShowAlarms setObject: [NSNumber numberWithBool: NO]
+                                   forKey: subscriptionPointer];
+            }
+          else
+            {
+              [folderShowAlarms removeObjectForKey: subscriptionPointer];
+              [freeBusyExclusions removeObjectForKey: subscriptionPointer];
+            }
+
+          [us synchronize];
+
+          rc = YES;
+        }
+    }
+
+  return rc;
+}
+
 //
 // If the user is the owner of the calendar, by default we include the freebusy information.
 //
@@ -447,9 +534,16 @@ - (BOOL) includeInFreeBusy
       = [self folderPropertyValueInCategory: @"FreeBusyExclusions"
 				    forUser: [SOGoUser userWithLogin: ownerInContext]];
 
-  // We haven't included/excluded freebusy info, let's INCLUDE it.
+  // User has not setting for freebusy inclusion/exclusion,
+  //   * include it if it's a personal folder;
+  //   * exclude it if it's a subscription.
   if (!excludeFromFreeBusy)
-    return YES;
+    {
+      if ([self isSubscription])
+        return NO;
+      else
+        return YES;
+    }
 
   return ![excludeFromFreeBusy boolValue];
 }
diff --git a/SoObjects/SOGo/SOGoGCSFolder.m b/SoObjects/SOGo/SOGoGCSFolder.m
index d82e9da0a1..debbdfe34b 100644
--- a/SoObjects/SOGo/SOGoGCSFolder.m
+++ b/SoObjects/SOGo/SOGoGCSFolder.m
@@ -958,8 +958,12 @@ - (BOOL) subscribeUserOrGroup: (NSString *) theIdentifier
 
       folderSubscription = [moduleSettings objectForKey: @"SubscribedFolders"];
       subscriptionPointer = [self folderReference];
-      
+
+      // We used to set "show alarms" for any type of folder, so we remove it
+      // here and let the subclass handle it (SOGoAppointmentFolder).
       folderShowAlarms = [moduleSettings objectForKey: @"FolderShowAlarms"];
+      if (folderShowAlarms)
+        [folderShowAlarms removeObjectForKey: subscriptionPointer];
 
       if (reallyDo)
         {
@@ -971,30 +975,17 @@ - (BOOL) subscribeUserOrGroup: (NSString *) theIdentifier
                                  forKey: @"SubscribedFolders"];
             }
 
-	  if (!(folderShowAlarms
-                && [folderShowAlarms isKindOfClass: [NSMutableDictionary class]]))
-            {
-              folderShowAlarms = [NSMutableDictionary dictionary];
-              [moduleSettings setObject: folderShowAlarms
-                                 forKey: @"FolderShowAlarms"];
-            }
-
           [self setFolderPropertyValue: [self _displayNameFromSubscriber]
                             inCategory: @"FolderDisplayNames"
                               settings: us];
 
           [folderSubscription addObjectUniquely: subscriptionPointer];
-	  
-	  // By default, we disable alarms on subscribed calendars
-	  [folderShowAlarms setObject: [NSNumber numberWithBool: NO]
-			       forKey: subscriptionPointer];
         }
       else
         {
           [self removeFolderSettings: moduleSettings
                        withReference: subscriptionPointer];
           [folderSubscription removeObject: subscriptionPointer];
-	  [folderShowAlarms removeObjectForKey: subscriptionPointer];
 	}
 
       [us synchronize];