diff --git a/src-ui/src/app/components/manage/mail/processed-mail-dialog/processed-mail-dialog.component.scss b/src-ui/src/app/components/manage/mail/processed-mail-dialog/processed-mail-dialog.component.scss
index 6aadd8330..c87a5c3f6 100644
--- a/src-ui/src/app/components/manage/mail/processed-mail-dialog/processed-mail-dialog.component.scss
+++ b/src-ui/src/app/components/manage/mail/processed-mail-dialog/processed-mail-dialog.component.scss
@@ -1,5 +1,7 @@
 ::ng-deep .popover {
     max-width: 350px;
+    max-height: 600px;
+    overflow: hidden;
 
     pre {
         white-space: pre-wrap;