When you need to note down a phone number, an address, a reference number or any other short piece of information which you want to keep at hand, you can use a postel.bzh sticky note.
Click on in the application launcher or on Sticky note in the Applications page to make a new sticky note appear and type your text in. You can change its background color and move it at your convenience.
All your sticky notes remain visible on all the pages of your postel.bzh webmail, until you remove them by clicking on in the corner. You can access them on your phone through the Sticky notes application.