$ sudo apt-get update
$ sudo apt-get install libmail-verify-perl 

libmail-verify-perl is installed in your system.

Make ensure the libmail-verify-perl package were installed using the commands given below,

$ sudo dpkg-query -l | grep libmail-verify-perl *

You will get with libmail-verify-perl package name, version, architecture and description in a table

libmail-verify-perl package basic information: