libdkim1d software package provides cryptographically identify the sender of email, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libdkim1d
libdkim1d is installed in your system.
Make ensure the libdkim1d package were installed using the commands given below,
$ sudo dpkg-query -l | grep libdkim1d *
You will get with libdkim1d package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libdkim1d |
| Version | 1:1.0.21-3build1 |
| Description | cryptographically identify the sender of email |
| Sub Section | libs |