diff --git a/addons/crm/crm_lead_view.xml b/addons/crm/crm_lead_view.xml
index e76a7a9124d..d054e956ed6 100644
--- a/addons/crm/crm_lead_view.xml
+++ b/addons/crm/crm_lead_view.xml
@@ -359,6 +359,7 @@
                         <filter string="Campaign" domain="[]" context="{'group_by':'type_id'}"/>
                         <filter string="Channel" domain="[]" context="{'group_by':'channel_id'}"/>
                         <filter string="Creation" domain="[]" context="{'group_by':'create_date'}"/>
+                        <filter string="Last Post (weekly)" name="group_message_last_post" domain="[]" context="{'group_by':'message_last_post:week'}"/>
                     </group>
                     <group string="Display">
                         <filter string="Show Countries" context="{'invisible_country': False}" help="Show Countries"/>
@@ -578,6 +579,7 @@
                         <filter string="Channel" domain="[]" context="{'group_by':'channel_id'}"/>
                         <filter string="Creation" domain="[]" context="{'group_by':'create_date'}"/>
                         <filter string="Last Update Month" domain="[]" context="{'group_by':'write_date'}"/>
+                        <filter string="Last Post (weekly)" name="group_message_last_post" domain="[]" context="{'group_by':'message_last_post:week'}"/>
                     </group>
                     <group string="Display">
                         <filter string="Show Sales Team" context="{'invisible_section': False}" domain="[]" help="Show Sales Team" groups="base.group_multi_salesteams"/>
diff --git a/addons/mail/mail_thread.py b/addons/mail/mail_thread.py
index adf02a4e918..c72ef8a77cb 100644
--- a/addons/mail/mail_thread.py
+++ b/addons/mail/mail_thread.py
@@ -306,6 +306,8 @@ class mail_thread(osv.AbstractModel):
             auto_join=True,
             string='Messages',
             help="Messages and communication history"),
+        'message_last_post': fields.datetime('Last Message Date',
+            help='Date of the last message posted on the record.'),
         'message_unread': fields.function(_get_message_data,
             fnct_search=_search_message_unread, multi="_get_message_data",
             type='boolean', string='Unread Messages',
@@ -1552,8 +1554,13 @@ class mail_thread(osv.AbstractModel):
         for x in ('from', 'to', 'cc'):
             values.pop(x, None)
 
-        # Create and auto subscribe the author
+        # Post the message
         msg_id = mail_message.create(cr, uid, values, context=context)
+
+        # Post-process: subscribe author, update message_last_post
+        if model and model != 'mail.thread' and thread_id and subtype_id:
+            # done with SUPERUSER_ID, because on some models users can post only with read access, not necessarily write access
+            self.write(cr, SUPERUSER_ID, [thread_id], {'message_last_post': fields.datetime.now()}, context=context)
         message = mail_message.browse(cr, uid, msg_id, context=context)
         if message.author_id and thread_id and type != 'notification' and not context.get('mail_create_nosubscribe'):
             self.message_subscribe(cr, uid, [thread_id], [message.author_id.id], context=context)
diff --git a/addons/project_issue/project_issue_view.xml b/addons/project_issue/project_issue_view.xml
index 68c6712f530..3af9ee608d6 100644
--- a/addons/project_issue/project_issue_view.xml
+++ b/addons/project_issue/project_issue_view.xml
@@ -160,6 +160,7 @@
                         <filter string="Priority" name="group_priority" icon="terp-rating-rated" domain="[]" context="{'group_by':'priority'}"/>
                         <filter string="Stage" name="group_stage_id" icon="terp-stage" domain="[]" context="{'group_by':'stage_id'}"/>
                         <filter string="Creation Month" name="group_create_date" icon="terp-go-month" domain="[]" context="{'group_by':'create_date'}"/>
+                        <filter string="Last Post (weekly)" name="group_message_last_post" domain="[]" context="{'group_by':'message_last_post:week'}"/>
                     </group>
                 </search>
             </field>