I use WLM to collect emails from Hotmail (outlook.com).  If I open an incoming email in WLM Quick Views it has the yellow banner "unknown sender".  If I open the same email in WLM from the inbox folder under Hotmail there is no unknown sender banner.  There is no banner anywhere on emails received in my non - Hotmail/outlook.com accounts in WLM.

How do I lose the yellow banner from Hotmail messages in Quick Views, please.