at least one human with their personal email address
in <tt>Uploaders</tt> if the maintainer is a shared email address.
</item>
+<tag>virtual</tag>
+ <item><tt>mailx</tt> added as a virtual package provided by packages
+ that install <prgn>/usr/bin/mailx</prgn> and implement at least the
+ POSIX-required interface.
+ </item>
</taglist></p>
<sect> Version 3.9.1.0