- Fallback to INBOX if this.env.mailbox is not specified in list_mailbox()

1 files changed, 1 insertions, 1 deletions

diff --git a/program/js/app.js b/program/js/app.js
index fe0a75ac5..868919cbd 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -1917,7 +1917,7 @@ function rcube_webmail()
     var url = '', target = window;
 
     if (!mbox)
-      mbox = this.env.mailbox;
+      mbox = this.env.mailbox ? this.env.mailbox : 'INBOX';
 
     if (add_url)
       url += add_url;