diff --git a/OpenSim/Addons/Groups/GroupsMessagingModule.cs b/OpenSim/Addons/Groups/GroupsMessagingModule.cs
index f701e48c06..92528a2dc9 100644
--- a/OpenSim/Addons/Groups/GroupsMessagingModule.cs
+++ b/OpenSim/Addons/Groups/GroupsMessagingModule.cs
@@ -83,7 +83,6 @@ namespace OpenSim.Groups
         private Dictionary<UUID, List<string>> m_groupsAgentsDroppedFromChatSession = new Dictionary<UUID, List<string>>();
         private Dictionary<UUID, List<string>> m_groupsAgentsInvitedToChatSession = new Dictionary<UUID, List<string>>();
 
-
         #region Region Module interfaceBase Members
 
         public void Initialise(IConfigSource config)
@@ -242,13 +241,18 @@ namespace OpenSim.Groups
 
         public void SendMessageToGroup(GridInstantMessage im, UUID groupID)
         {
-            SendMessageToGroup(im, groupID, null);
+            SendMessageToGroup(im, groupID, UUID.Zero, null);
         }
         
-        public void SendMessageToGroup(GridInstantMessage im, UUID groupID, Func<GroupMembersData, bool> sendCondition)
+        public void SendMessageToGroup(
+            GridInstantMessage im, UUID groupID, UUID sendingAgentForGroupCalls, Func<GroupMembersData, bool> sendCondition)
         {
             UUID fromAgentID = new UUID(im.fromAgentID);
+
+            // Unlike current XmlRpcGroups, Groups V2 can accept UUID.Zero when a perms check for the requesting agent
+            // is not necessary.
             List<GroupMembersData> groupMembers = m_groupData.GetGroupMembers(UUID.Zero.ToString(), groupID);
+
             int groupMembersCount = groupMembers.Count;
             PresenceInfo[] onlineAgents = null;
 
diff --git a/OpenSim/Region/Framework/Interfaces/IGroupsMessagingModule.cs b/OpenSim/Region/Framework/Interfaces/IGroupsMessagingModule.cs
index 61bd153ae0..7dc1552e94 100644
--- a/OpenSim/Region/Framework/Interfaces/IGroupsMessagingModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IGroupsMessagingModule.cs
@@ -83,10 +83,15 @@ namespace OpenSim.Region.Framework.Interfaces
         /// dialog - This must be (byte)InstantMessageDialog.SessionSend
         /// </param>
         /// <param name="groupID"></param>
+        /// <param name="sendingAgentForGroupCalls">
+        /// The requesting agent to use when querying the groups service.  Sometimes this is different from 
+        /// im.fromAgentID, with group notices, for example.
+        /// </param>
         /// <param name="sendCondition">
         /// The condition that must be met by a member for the message to be sent.  If null then the message is sent
         /// if the chat session is active.
         /// </param>
-        void SendMessageToGroup(GridInstantMessage im, UUID groupID, Func<GroupMembersData, bool> sendCondition);
+        void SendMessageToGroup(
+            GridInstantMessage im, UUID groupID, UUID sendingAgentForGroupCalls, Func<GroupMembersData, bool> sendCondition);
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
index 741a98f69a..fd804cda95 100644
--- a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
@@ -238,15 +238,15 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
             }
         }
 
-        
         public void SendMessageToGroup(GridInstantMessage im, UUID groupID)
         {
-            SendMessageToGroup(im, groupID, null);
+            SendMessageToGroup(im, groupID, new UUID(im.fromAgentID), null);
         }
         
-        public void SendMessageToGroup(GridInstantMessage im, UUID groupID, Func<GroupMembersData, bool> sendCondition)
+        public void SendMessageToGroup(
+            GridInstantMessage im, UUID groupID, UUID sendingAgentForGroupCalls, Func<GroupMembersData, bool> sendCondition)
         {
-            List<GroupMembersData> groupMembers = m_groupData.GetGroupMembers(new UUID(im.fromAgentID), groupID);
+            List<GroupMembersData> groupMembers = m_groupData.GetGroupMembers(sendingAgentForGroupCalls, groupID);
             int groupMembersCount = groupMembers.Count;
 
             if (m_messageOnlineAgentsOnly)
@@ -489,7 +489,6 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
 
         #endregion
 
-
         #region ClientEvents
         private void OnInstantMessage(IClientAPI remoteClient, GridInstantMessage im)
         {
diff --git a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
index d4f70a75ca..fc8cae2664 100644
--- a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
@@ -538,7 +538,8 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
                         = CreateGroupNoticeIM(UUID.Zero, NoticeID, (byte)OpenMetaverse.InstantMessageDialog.GroupNotice);
 
                     if (m_groupsMessagingModule != null)
-                        m_groupsMessagingModule.SendMessageToGroup(msg, GroupID, gmd => gmd.AcceptNotices);
+                        m_groupsMessagingModule.SendMessageToGroup(
+                            msg, GroupID, remoteClient.AgentId, gmd => gmd.AcceptNotices);
                 }
             }