Applications
Google has developed several subsidiary applications for Gmail.
Gmail Notifier, an official tool offered by Google, displays a small icon in the notification area (see taskbar) in Microsoft Windows and on the right-hand side of the menu bar in Mac OS X, indicating the presence of new mail in one's inbox. It also has a feature that makes Gmail the default mail-client for mailto links. It does not, however, download new messages. Users of Linux have a choice of several unofficial notifiers.
On 10 February 2006 Google introduced "Gmail For Your Domain". All companies who participated in the beta testing gained permission to use Gmail throughout their own domains. Since then, Google has developed Google Apps, which includes customizable versions of Google Calendar, Google Page Creator and more. With various editions available, it targets enterprises as well as small businesses.
On 2 November 2006 Google began offering a mobile-application based version of its Gmail product for mobile phones capable of running Java applications. In addition, Sprint Nextel announced separately that it would make the application available from its Vision and Power Vision homepages and which it will preload onto some new Sprint phones. The application gives Gmail its own custom menu system: one much easier to navigate than a Web-based application running on a cell phone. Gmail's message threading also shows up clearly and the site displays attachments, such as photos and documents, in the application.
The Gmail interface supports drag and drop of attachments to and from the inbox. Users can add an attachment by dragging it into the mail window. Similarly an attachment can be downloaded by dragging the attachment from the message to the desktop.
Read more about this topic: Gmail Interface