$ sudo apt-get update
$ sudo apt-get install libmail-mbox-messageparser-per

libmail-mbox-messageparser-per is installed in your system.

Make ensure the libmail-mbox-messageparser-per package were installed using the commands given below,

$ sudo dpkg-query -l | grep libmail-mbox-messageparser-per*

You will get with libmail-mbox-messageparser-per package name, version, architecture and description in a table

libmail-mbox-messageparser-per package basic information: