diff --git a/addons/mail/static/src/models/composer/composer.js b/addons/mail/static/src/models/composer/composer.js
index 719ac051174..27482c1c4ab 100644
--- a/addons/mail/static/src/models/composer/composer.js
+++ b/addons/mail/static/src/models/composer/composer.js
@@ -172,7 +172,7 @@ function factory(dependencies) {
          * If true composer will log a note, else a comment will be posted.
          */
         isLog: attr({
-            default: false,
+            default: true,
         }),
         /**
          * Determines whether a post_message request is currently pending.