In this module, you learned the basics of configuring, testing, and running the
sendmail program.
Now that you have completed this module, you should be able to:
Explain the email process and the use of agents
List the major responsibilities of the sendmail agent
Describe how sendmail uses the SMTP protocol to forward email across the Internet
Compile sendmail
Use a .mc template file and M4 to create a sendmail configuration file automatically
Test a new sendmail configuration before deploying it
Use nslookup to view MX records
Key terms
In this module, we used the following terms:
aliasing: Aliasing allows all users to refer to users by simple nicknames or by names other than their UNIX user name
M4: M4 is a macro language that works with sendmail and, among other things, greatly simplifies sendmail configuration.
Mail Delivery Agent: A Mail Delivery Agent (MDA) copies the message from the Mail Transfer Agent (MTA) into the users mailbox file.
Mail Exchange (MX) record: An MX record is a type of Resource Record that defines a mail exchange host.
Mail Transfer Agent: A Mail Transfer Agent (MTA) is a program that routes email among different machines.
Mail User Agent" "A Mail User Agent (MUA) is a program that allows users to compose, send, receive, and access email messages
masquerading: Masquerading is the ability for a sendmail daemon to rewrite a subdomain\'s email address.
SMTP: Simple Mail Transport Protocol (SMTP) is an application layer protocol for routing email.
Using Configuring Sendmail - Quiz
Click the Quiz link below to take a multiple-choice quiz covering what you've learned in this module.
Using Configuring Sendmail - Quiz