Linux System - Table 12 > Packages - Table 1 & 2 > sendmail

\"The Sendmail program is a very widely used Mail Transport Agent (MTA).MTAs send mail from one machine to another. Sendmail is not a clientprogram, which you use to read your email. Sendmail is abehind-the-scenes program which actually moves your email over networksor the Internet to where you want it to go. If you ever need toreconfigure Sendmail, you'll also need to have the sendmail.cf packageinstalled. If you need documentation on Sendmail, you can install thesendmail-doc package.\"