diff --git a/addons/mail/mail_thread.py b/addons/mail/mail_thread.py
index 9d7237ca907..7a2be4aed01 100644
--- a/addons/mail/mail_thread.py
+++ b/addons/mail/mail_thread.py
@@ -773,7 +773,7 @@ class mail_thread(osv.AbstractModel):
                 msg_dict['author_id'] = author_ids[0]
             else:
                 msg_dict['email_from'] = message.get('from')
-        partner_ids = self._message_find_partners(cr, uid, message, ['From', 'To', 'Cc'], context=context)
+        partner_ids = self._message_find_partners(cr, uid, message, ['To', 'Cc'], context=context)
         msg_dict['partner_ids'] = [(4, partner_id) for partner_id in partner_ids]
 
         if 'Date' in message: