How to uninstall or remove courier-webadmin software package from Ubuntu 16.10 (Yakkety Yak)

You can uninstall or removes an installed courier-webadmin package itself from Ubuntu 16.10 (Yakkety Yak) through the terminal,

$ sudo apt-get remove courier-webadmin

Uninstall courier-webadmin including dependent package

If you would like to remove courier-webadmin and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove courier-webadmin

Use Purging courier-webadmin

If you use with purge options to courier-webadmin package all the configuration and dependent packages will be removed.

$ sudo apt-get purge courier-webadmin

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove courier-webadmin