diff --git a/addons/mail/static/src/components/message/message.scss b/addons/mail/static/src/components/message/message.scss
index 4a6db5101e1..4033cc29d58 100644
--- a/addons/mail/static/src/components/message/message.scss
+++ b/addons/mail/static/src/components/message/message.scss
@@ -25,6 +25,7 @@
         // may impact the bullet point (at least it does on Safari).
         max-width: 100%;
         overflow-x: auto;
+        overflow-y: hidden;
 
         // overflow: auto can break rendering of next element of a frequent broken Outlook 365
         // warning table. If detected, we prevent the issue by removing flotation.