## Chapter 20 Electronic Mail 

 **Table of Contents** 

* 20.1 [ Synopsis](mail.html#MAIL-SYNOPSIS)

* 20.2 [Using Electronic Mail](mail-using.html)

* 20.3 [Sendmail Configuration](sendmail.html)

* 20.4 [Changing Your Mail Transfer Agent](mail-changingmta.html)

* 20.5 [Troubleshooting](mail-trouble.html)

* 20.6 [Advanced Topics](mail-advanced.html)

* 20.7 [SMTP with UUCP](smtp-uucp.html)

* 20.8 [Setting up to send only](outgoing-only.html)

* 20.9 [Using Mail with a Dialup Connection](smtp-dialup.html)

* 20.10 [SMTP Authentication](smtp-auth.html)

* 20.11 [Mail User Agents](mail-agents.html)

* 20.12 [Using fetchmail](mail-fetchmail.html)

* 20.13 [Using procmail](mail-procmail.html)
***Original work by Bill Lloyd. Rewritten by Jim Mock. ***

## 20.1 Synopsis 

***Electronic Mail***, better known as email, is one of the most widely used forms of communication today. This chapter provides a basic introduction to running a mail server on DragonFly, as well as an introduction to sending and receiving email using DragonFly; however, it is not a complete reference and in fact many important considerations are omitted. For more complete coverage of the subject, the reader is referred to the many excellent books listed in [Appendix B](bibliography.html).

After reading this chapter, you will know:


* What software components are involved in sending and receiving electronic mail.

* Where basic sendmail configuration files are located in DragonFly.

* The difference between remote and local mailboxes.

* How to block spammers from illegally using your mail server as a relay.

* How to install and configure an alternate Mail Transfer Agent on your system, replacing sendmail.

* How to troubleshoot common mail server problems.

* How to use SMTP with UUCP.

* How to set up the system to send mail only.

* How to use mail with a dialup connection.

* How to configure SMTP Authentication for added security.

* How to install and use a Mail User Agent, such as mutt to send and receive email.

* How to download your mail from a remote POP or IMAP server.

* How to automatically apply filters and rules to incoming email.

Before reading this chapter, you should:


* Properly set up your network connection ([Chapter 19](advanced-networking.html)).

* Properly set up the DNS information for your mail host ([Chapter 19](advanced-networking.html)).

* Know how to install additional third-party software ([Chapter 4](pkgsrc.html)).



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