diff --git a/addons/mass_mailing/views/mass_mailing.xml b/addons/mass_mailing/views/mass_mailing.xml
index e441f78190f..fdede2f38d6 100644
--- a/addons/mass_mailing/views/mass_mailing.xml
+++ b/addons/mass_mailing/views/mass_mailing.xml
@@ -281,10 +281,10 @@
string="Test Mailing"/>
+ class="oe_highlight" string="Send to All" confirm="This will send the email to all recipients. Do you still want to proceed ?"/>
+ string="Send to All" confirm="This will send the email to all recipients. Do you still want to proceed ?"/>