diff --git a/webmails/snappymail/defaults/application.ini b/webmails/snappymail/defaults/application.ini
index bcf544c5..5b11d751 100644
--- a/webmails/snappymail/defaults/application.ini
+++ b/webmails/snappymail/defaults/application.ini
@@ -20,6 +20,7 @@ allow_sync = On
 
 [defaults]
 contacts_autosave = On
+autologout = {{ (((PERMANENT_SESSION_LIFETIME | default(10800)) | int)/60) | int }}
 
 [cache]
 enable = On