diff --git a/zephyr/static/styles/zephyr.css b/zephyr/static/styles/zephyr.css
index c0e0d057c0..f7ad85ebab 100644
--- a/zephyr/static/styles/zephyr.css
+++ b/zephyr/static/styles/zephyr.css
@@ -206,6 +206,11 @@ td.pointer {
        region of 'hover-ability' between fullname and email. */
     padding-left: 5px;
 }
+@media (max-width: 480px) {
+    .sender_email {
+        display: none;
+    }
+}
 
 .message_label_clickable:hover {
     cursor: pointer;