coolmail software package provides Mail notifier with 3d graphics, you can install in your Ubuntu 16.10 (Yakkety Yak) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install coolmail
coolmail is installed in your system.
Make ensure the coolmail package were installed using the commands given below,
$ sudo dpkg-query -l | grep coolmail *
You will get with coolmail package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | |
| Package | coolmail |
| Version | 1.3-12 |
| Description | Mail notifier with 3d graphics |
| Sub Section |