alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Hotmail Compose Message Submit"; flow:to_server,established; content:"POST"; http_method; content:"mail.live.com"; nocase; http_header; content:"SendMessageLight.aspx"; http_uri; classtype:policy-violation; sid:2008241; rev:5; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)