diff --git a/addons/crm/models/crm_lead.py b/addons/crm/models/crm_lead.py
index 9fdb29a19f6..e7427f36e75 100644
--- a/addons/crm/models/crm_lead.py
+++ b/addons/crm/models/crm_lead.py
@@ -1173,28 +1173,6 @@ class Lead(models.Model):
         defaults.update(custom_values)
         return super(Lead, self).message_new(msg_dict, custom_values=defaults)
 
-    @api.multi
-    def message_update(self, msg_dict, update_vals=None):
-        """ Overrides mail_thread message_update that is called by the mailgateway
-            through message_process.
-            This method updates the document according to the email.
-        """
-        if update_vals is None:
-            update_vals = {}
-        if msg_dict.get('priority') in dict(crm_stage.AVAILABLE_PRIORITIES):
-            update_vals['priority'] = msg_dict.get('priority')
-        maps = {
-            'revenue': 'planned_revenue',
-            'probability': 'probability',
-        }
-        for line in msg_dict.get('body', '').split('\n'):
-            line = line.strip()
-            res = tools.command_re.match(line)
-            if res and maps.get(res.group(1).lower()):
-                key = maps.get(res.group(1).lower())
-                update_vals[key] = res.group(2).lower()
-        return super(Lead, self).message_update(msg_dict, update_vals=update_vals)
-
     def _message_post_after_hook(self, message, values, notif_layout, notif_values):
         if self.email_from and not self.partner_id:
             # we consider that posting a message with a specified recipient (not a follower, a specific one)
diff --git a/addons/project/models/project.py b/addons/project/models/project.py
index 8a7ef37a487..11bb6b9314e 100644
--- a/addons/project/models/project.py
+++ b/addons/project/models/project.py
@@ -935,23 +935,6 @@ class Task(models.Model):
     @api.multi
     def message_update(self, msg, update_vals=None):
         """ Override to update the task according to the email. """
-        if update_vals is None:
-            update_vals = {}
-        maps = {
-            'cost': 'planned_hours',
-        }
-        for line in msg['body'].split('\n'):
-            line = line.strip()
-            res = tools.command_re.match(line)
-            if res:
-                match = res.group(1).lower()
-                field = maps.get(match)
-                if field:
-                    try:
-                        update_vals[field] = float(res.group(2).lower())
-                    except (ValueError, TypeError):
-                        pass
-
         email_list = self.email_split(msg)
         partner_ids = [p for p in self._find_partner_from_emails(email_list, force_create=False) if p]
         self.message_subscribe(partner_ids)
diff --git a/odoo/tools/mail.py b/odoo/tools/mail.py
index ce1ccb90e3a..0b4608c62e3 100644
--- a/odoo/tools/mail.py
+++ b/odoo/tools/mail.py
@@ -415,9 +415,6 @@ email_re = re.compile(r"""([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,63})""",
 # matches a string containing only one email
 single_email_re = re.compile(r"""^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,63}$""", re.VERBOSE)
 
-# update command in emails body
-command_re = re.compile("^Set-([a-z]+) *: *(.+)$", re.I + re.UNICODE)
-
 # Updated in 7.0 to match the model name as well
 # Typical form of references is <timestamp-openerp-record_id-model_name@domain>
 # group(1) = the record ID ; group(2) = the model (if any) ; group(3) = the domain