Sendmail is a program which runs on Linux and other Unix-like operating systems, and its function is, as its name suggests, to deliver email. It also receives email. Sendmail is robust, stable, and highly configurable. Sendmail is also one of the oldest programs out there; but it is very complicated. This book aims to tell you what you need to know to get Sendmail to work. It is therefore intended as a book for beginners. Sendmail is difficult to understand, and has many cryptic error messages. After reading through this book, however, you should be able to configure a Sendmail server, and you should be able to understand most of its error messages. This new edition includes more detail on spam (junk mail) filters, including Greylisting, Spamassassin, Sender Address Verification, and ClamAV. It also now includes a chapter on encryption (TLS).
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By John Ostrowick
Jan 19, 2010
Sendmail is a program which runs on Linux and other UNIX™-like operating systems, and its function is, as its name suggests, to deliver email. It also receives email. Sendmail is also one of the oldest and most reliable programs out there; it is just very complicated. This book aims to tell you what you need to know to get Sendmail to work. It is therefore intended as a book for beginners. It is also useful for hurried system administrators who do not have time to trawl Internet for solutions to problems that need to be solved right now. Sendmail is particularly difficult to understand, and has many cryptic error messages. After reading through this book, however, you should be able to configure a Sendmail server, and you should be able to understand most of its error messages.
