courier-base software package provides Courier mail server - base system, you can install in your Ubuntu 17.04 (Zesty Zapus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install courier-base
courier-base is installed in your system.
Make ensure the courier-base package were installed using the commands given below,
$ sudo dpkg-query -l | grep courier-base *
You will get with courier-base package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | |
| Package | courier-base |
| Version | 0.76.3-1 |
| Description | Courier mail server - base system |
| Sub Section |