/usr/share/app-install/desktop/syncmaildir-applet:smd-applet-configure.desktop is in app-install-data 14.04.0.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | [Desktop Entry]
X-AppInstall-Package=syncmaildir-applet
X-AppInstall-Popcon=26
X-AppInstall-Section=universe
Name=Sync Mail Dir
Comment=Configure Sync Mail Dir
Icon=mail-send-receive
Exec=smd-applet --configure
Terminal=false
Type=Application
Categories=Settings;GTK;GNOME;Email
X-Ubuntu-Gettext-Domain=app-install-data
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