diff --git a/addons/mass_mailing/static/src/less/themes/theme_default.less b/addons/mass_mailing/static/src/less/themes/theme_default.less
index 2c01e9be498..98f86421000 100644
--- a/addons/mass_mailing/static/src/less/themes/theme_default.less
+++ b/addons/mass_mailing/static/src/less/themes/theme_default.less
@@ -55,7 +55,7 @@
     width: 100%;
     min-height: 100%;
     background-color: @o_mm_def_color_alpha;
-    padding: 24px;
+    padding: 24px 0;
 
     > .o_mail_wrapper {
         width: 100%;