199 lines
2.8 KiB
HTML
199 lines
2.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><HEAD
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><TITLE
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>Background</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="Spam Filtering for Mail Exchangers"
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HREF="index.html"><LINK
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REL="PREVIOUS"
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TITLE="Organization of this document"
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HREF="intro-organization.html"><LINK
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REL="NEXT"
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TITLE="Why Filter Mail During the SMTP Transaction?"
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HREF="whysmtptime.html"></HEAD
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><BODY
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CLASS="chapter"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>Spam Filtering for Mail Exchangers: </TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="intro-organization.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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></TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="whysmtptime.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="chapter"
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><H1
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><A
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NAME="background"
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></A
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>Chapter 1. Background</H1
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><DIV
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CLASS="TOC"
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><DL
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><DT
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><B
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>Table of Contents</B
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></DT
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><DT
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>1.1. <A
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HREF="whysmtptime.html"
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>Why Filter Mail During the SMTP Transaction?</A
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></DT
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><DD
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><DL
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><DT
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>1.1.1. <A
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HREF="whysmtptime.html#statusquo"
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>Status Quo</A
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></DT
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><DT
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>1.1.2. <A
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HREF="whysmtptime.html#cause"
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>The Cause</A
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></DT
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><DT
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>1.1.3. <A
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HREF="whysmtptime.html#solution"
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>The Solution</A
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></DT
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></DL
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></DD
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><DT
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>1.2. <A
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HREF="goodbadugly.html"
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>The Good, The Bad, The Ugly</A
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></DT
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><DT
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>1.3. <A
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HREF="smtpintro.html"
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>The SMTP Transaction</A
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></DT
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></DL
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></DIV
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><BLOCKQUOTE
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CLASS="ABSTRACT"
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><DIV
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CLASS="abstract"
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><A
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NAME="AEN362"
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></A
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><P
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></P
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><P
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> Here we cover the advantages of filtering mail during an
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incoming SMTP transaction, rather than following the more
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conventional approach of offloading this task to the mail
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routing and delivery stage. We also provide a brief
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introduction to the SMTP transaction.
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</P
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><P
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></P
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></DIV
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></BLOCKQUOTE
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="intro-organization.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="whysmtptime.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>Organization of this document</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Why Filter Mail During the SMTP Transaction?</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |