libesmtp-dev software package provides LibESMTP SMTP client library development files, 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 libesmtp-dev
libesmtp-dev is installed in your system.
Make ensure the libesmtp-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libesmtp-dev *
You will get with libesmtp-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libesmtp-dev |
| Version | 1.0.6-1ubuntu2 |
| Description | LibESMTP SMTP client library development files |
| Sub Section | libdevel |