On normal system MTA most certainly is already installed.

No longer use "start_smartd" in defaults; Added note how to disable the service to README.Debian (Closes: #907736, #767569)

 Thanks, Christoph Anton Mitterer.

Update to upstream version '7.0'
with Debian dir f055f8f163396aa516b9a967313fb5a4d75bf785

 Set myself as Maintainer.

Using buster kernel, the HP SmartArray controller names have been changed to
regular /dev/sd? and no longer use /dev/cciss/c?d?

Upstream commit 3d8ad6fa from version
6.4+svn4109 removed the WARNINGS file that was saying:
-This file is no longer maintained, please see:
-http://www.smartmontools.org/wiki/Warnings