Blocking Unsolicited Bulk Email

Unsolicited Bulk Email (UBE), also referred to as Unsolicited Commercial Email (UCE), is commonly called spam. Spamming is the practice of sending mass mailings to large numbers of people who have had no prior relationship with the sender and who didn't ask to receive such mail. Spam exists because it's so cheap to send. The incremental cost of adding even hundreds of thousands of recipients to a mailing is relatively small, so spammers target as many email addresses as they possibly can. This chapter looks at the problem of spam and the tools Postfix provides to help limit the consequences.



Postfix Architecture

General Configuration and Administration

Queue Management

Email and DNS

Local Delivery and POP/IMAP

Hosting Multiple Domains

Mail Relaying

Mailing Lists

Blocking Unsolicited Bulk Email

SASL Authentication

Transport Layer Security

Content Filtering

External Databases

Appendix A. Configuration Parameters

Appendix B. Postfix Commands

Appendix C. Compiling and Installing Postfix

Appendix D. Frequently Asked Questions

Postfix(c) The Definitive Guide
Postfix: The Definitive Guide
ISBN: 0596002122
EAN: 2147483647
Year: 2006
Pages: 130
Authors: Kyle Dent D. © 2008-2020.
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