diff --git a/addons/crm/crm_lead.py b/addons/crm/crm_lead.py
index 3fae85f311d..6e484506223 100644
--- a/addons/crm/crm_lead.py
+++ b/addons/crm/crm_lead.py
@@ -966,6 +966,11 @@ class crm_lead(base_stage, format_address, osv.osv):
     # Mail Gateway
     # ----------------------------------------
 
+    def message_get_reply_to(self, cr, uid, ids, context=None):
+        """ Override to get the reply_to of the parent project. """
+        return [lead.section_id.message_get_reply_to()[0] if lead.section_id else False
+                    for lead in self.browse(cr, uid, ids, context=context)]
+
     def message_new(self, cr, uid, msg, custom_values=None, context=None):
         """ Overrides mail_thread message_new that is called by the mailgateway
             through message_process.
diff --git a/addons/project/project.py b/addons/project/project.py
index e98254d2fa1..40fb6bb4efd 100644
--- a/addons/project/project.py
+++ b/addons/project/project.py
@@ -1166,6 +1166,11 @@ class task(base_stage, osv.osv):
     # Mail gateway
     # ---------------------------------------------------
 
+    def message_get_reply_to(self, cr, uid, ids, context=None):
+        """ Override to get the reply_to of the parent project. """
+        return [task.project_id.message_get_reply_to()[0] if task.project_id else False
+                    for task in self.browse(cr, uid, ids, context=context)]
+
     def message_new(self, cr, uid, msg, custom_values=None, context=None):
         """ Override to updates the document according to the email. """
         if custom_values is None: custom_values = {}
diff --git a/addons/project_issue/project_issue.py b/addons/project_issue/project_issue.py
index 8b2afb130e1..5a757fdac39 100644
--- a/addons/project_issue/project_issue.py
+++ b/addons/project_issue/project_issue.py
@@ -481,6 +481,11 @@ class project_issue(base_stage, osv.osv):
     # Mail gateway
     # -------------------------------------------------------
 
+    def message_get_reply_to(self, cr, uid, ids, context=None):
+        """ Override to get the reply_to of the parent project. """
+        return [issue.project_id.message_get_reply_to()[0] if issue.project_id else False
+                    for issue in self.browse(cr, uid, ids, context=context)]
+
     def message_new(self, cr, uid, msg, custom_values=None, context=None):
         """ Overrides mail_thread message_new that is called by the mailgateway
             through message_process.