claws-mail-libravatar software package provides Display sender avatar from a libravatar server, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install claws-mail-libravatar
claws-mail-libravatar is installed in your system.
Make ensure the claws-mail-libravatar package were installed using the commands given below,
$ sudo dpkg-query -l | grep claws-mail-libravatar *
You will get with claws-mail-libravatar package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | |
| Package | claws-mail-libravatar |
| Version | 3.14.1-1 |
| Description | Display sender avatar from a libravatar server |
| Sub Section |