esmtp-run software package provides user configurable relay-only MTA - the regular MTA, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install esmtp-run
esmtp-run is installed in your system.
Make ensure the esmtp-run package were installed using the commands given below,
$ sudo dpkg-query -l | grep esmtp-run *
You will get with esmtp-run package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | |
| Package | esmtp-run |
| Version | 1.2-10 |
| Description | user configurable relay-only MTA - the regular MTA |
| Sub Section |