In sharepoint online 2013 I want to create a contact form on the public facing site so anonymous users can contact our company using that form.
I tried to create an app using the Client Object Model but it only works for logged in users.
I thought that this could not be done but then I found this app http://office.microsoft.com/en-us/office365-sharepoint-online-enterprise-help/add-a-contact-us-form-app-to-your-website-HA102845395.aspx which works for anonymous users.
So, does anyone knows how can I implement this kind of app?