IN THIS CHAPTER
Activating Sendmail on Mac OS X
Updating Your Sendmail Installation
Postfix as an Alternative
Delivering Mail ”UW IMAP
MTAs, Mail Transfer Agents, are one of the most active and most frequently misconfigured services on the Internet. Millions of messages are transferred daily, and many with virus payloads spread by poorly secured servers. Mail servers present a serious risk and responsibility for system administrators. Rather than posing a single security risk, mail servers can open your system to numerous vulnerabilities.