claws-mail-address-keeper software package provides Address keeper plugin for Claws Mail, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install claws-mail-address-keeper
claws-mail-address-keeper is installed in your system.
Make ensure the claws-mail-address-keeper package were installed using the commands given below,
$ sudo dpkg-query -l | grep claws-mail-address-keeper *
You will get with claws-mail-address-keeper package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | |
| Package | claws-mail-address-keeper |
| Version | 3.13.2-1ubuntu1 |
| Description | Address keeper plugin for Claws Mail |
| Sub Section |