“Setting up Sendmail for email communications isn’t
difficult, but some security precautions should be implemented to
keep others from misusing your system.“
“How do I set up Red Hat Linux 6.2 to be a mail server?”
“Red Hat Linux version 6.2 comes with the SMTP daemon Sendmail
8.9.3. In order to correctly use Sendmail, you need to first make
sure that the proper packages are installed. Once they’re
installed, you can simply configure the Sendmail program to send
and receive email.
“You can verify that you have the correct packages by using the
rpm command. As root, type the following:”
rpm -q sendmail sendmail-cf m4
“If you are using the default install of Red Hat, you should see
the following output:”
sendmail-cf-8.9.3-20
sendmail-8.9.3-20
m4-1.4-12