diff --git a/addons/mail/static/src/css/mail.css b/addons/mail/static/src/css/mail.css
index 638d016921b..8e739af8886 100644
--- a/addons/mail/static/src/css/mail.css
+++ b/addons/mail/static/src/css/mail.css
@@ -167,6 +167,9 @@
     line-height:24px;
     text-align: center;
 }
+.openerp_ie .oe_mail .oe_msg .oe_msg_icons span {
+    -ms-filter: "progid:DXImageTransform.Microsoft.shadow(color=#aaaaaa,strength=2)";
+}
 .openerp .oe_mail .oe_msg .oe_msg_icons a {
     text-decoration: none;
     color: #FFF;