Apple has released Mail Update for Mavericks. The company says it includes improvements to general stability and compatibility with Gmail, including the following:
° Fixes an issue that prevents deleting, moving, and archiving messages for users with custom Gmail settings;
° Addresses an issue that may cause unread counts to be inaccurate;
° Includes additional fixes that improve the compatibility and stability of Mail
To install the update:
You should back up your system before installation. To do this you can use Time Machine. Apple says you may experience unexpected results if you have third-party system software modiﬁcations installed, or if you’ve modiﬁed the operating system through other means.
Choose Apple menu () > Software Update to check for the latest Apple software via the Mac App Store, including this update.
You can also download the manual update installer. This is a useful option when you need to update multiple computer, but only want to download the update once. Standalone installers are available from Apple Support Downloads. For more info go to http://support.apple.com/kb/HT6030 .