fix some bug in mail module
fix some bug in mail module

scorpionis/docklet,caodg/docklet,caodg/docklet,FirmlyReality/docklet,FirmlyReality/docklet,caodg/docklet,caodg/docklet,FirmlyReality/docklet,FirmlyReality/docklet,scorpionis/docklet