The crew in Oslo keeps plugging away at Opera 11.10, and the latest snapshot build includes a number of improvements to Opera's built-in email client -- as well as HTML5-related additions.
On the IMAP front, Opera now supports special folders like sent items, spam, and trash. It also better handles duplicate items in Gmail -- such as those which appear in all mail and under your custom labels.
Opera 11.10 now partially supports the HTML5 File API as well, which means your favorite Web apps (like Gmail) may soon begin adding Opera to the list of supported browsers.
The Opera 11.10 RC is now
available.
source: Opera