Install kontact by entering the following commands in the terminal:
sudo apt update sudo apt install kontact
Description:
integrated application for personal information management
Kontact is the integrated solution to your personal information management needs. It combines applications like KMail, KOrganizer and KAddressBook into a single interface to provide easy access to mail, scheduling, address book and other PIM functionality.
Homepage: http://kontact.kde.org/
Version: 4:17.12.3-0ubuntu1
Section: universe/kde