Hi @carmends, did you delete the folders from an email application like Outlook / Windows mail before? If it was then that might have not synchronised with the Optus webmail server. So on the Optus webmail server the folders are still there. I would recommend to delete the folders directly from webmail → login
You can also refer to our webmail → settings page to make sure all the settings are correct. If you need further assistance then you are best to speak with our Technical Support team via the → messaging service to look into this for you.