php-horde-mail software package provides Horde Mail Library, 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 php-horde-mail
php-horde-mail is installed in your system.
Make ensure the php-horde-mail package were installed using the commands given below,
$ sudo dpkg-query -l | grep php-horde-mail *
You will get with php-horde-mail package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | PHP |
| Package | php-horde-mail |
| Version | 2.1.4-1 |
| Description | Horde Mail Library |
| Sub Section | PHP |