"Is it possible to send an email from a host that has no email
client software installed? As long as you have netcat, of course it
"Netcat (/usr/bin/nc on Red Hat Enterprise Linux systems) is a
simple utility for reading and writing data across TCP/UDP
connections. It's often used for testing and debugging network
connections. In its most basic usage, netcat allows you to feed a
stream of data to a specific port on a specific host, which is
perfect for our purpose here. Check the netcat man page for more
information on it's various features. There are also sample scripts
under /usr/share/doc/nc-*/. If netcat is not installed on your Red
Hat Enterprise Linux, CentOS or Fedora system, you can install it
with the command yum install nc."
Some of the products that appear on this site are from companies from which QuinStreet receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. QuinStreet does not include all companies or all types of products available in the marketplace.