Under General, you can customize the Interface language, Reply name / Address, Time zone, Signature, Change password and few other options such as “Allow external images” “Sound notifications” “Resize Image attachments” and Spellcheck language.
Filtering and Spam ControlHere you can configure your account spam configuration, Holiday autoresponder, Forwarding, Filtering rules and exceptions, Safe address list, Spam Control and Challenge unknown sender options accordingly.
Screen LayoutThe behavior of Webmail can be more like a traditional "desktop application" or more like a "web page". This can be tailored here.
Customise: Page for customisation of Webmail interface features.
Extras: Extra serverside processing features the server administrator may have enabled
Once done, click on Save to save the settings