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| Preface | |
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| Some Basics | |
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| Email Basics | |
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| Requests for Comments (RFCs) | |
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| Email and sendmail | |
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| Basic Parts of sendmail | |
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| Basic Parts of a Mail Message | |
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| Basic Roles of sendmail | |
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| Basic Modes of sendmail | |
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| The sendmail.cf File | |
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| Build and Install | |
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| Build and Install sendmail | |
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| Vendor Versus Compiling | |
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| Obtain the Source | |
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| The Build Script | |
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| Building with m4 | |
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| Build sendmail | |
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| Install sendmail | |
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| Pitfalls | |
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| Build m4 Macro Reference | |
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| Tune sendmail with Compile-Time Macros | |
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| Before You Begin, a Checklist | |
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| To Port, Tune, or Debug | |
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| Pitfalls | |
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| Compile-Time Macro Reference | |
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| Configure sendmail.cf with m4 | |
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| The m4 Preprocessor | |
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| Configure with m4 | |
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| m4 Macros by Function | |
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| Masquerading | |
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| Relays | |
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| UUCP Support | |
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| Pitfalls | |
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| Configuration File Feature Reference | |
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| Build and Use Companion Programs | |
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| The Build Script | |
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| The editmap Program | |
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| The mail.local Delivery Agent | |
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| The mailstats Program | |
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| The makemap Program | |
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| The praliases Program | |
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| The rmail Delivery Agent | |
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| The smrsh Program | |
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| The vacation Program | |
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| Pitfalls | |
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| Administration | |
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| Tune Performance | |
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| Handle Deep Queues | |
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| Sidestep Slow Hosts | |
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| Deliver to Files | |
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| Buffered File I/O | |
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| Use Multiple Queues | |
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| Condition the Network | |
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| Tune the Kernel | |
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| Pitfalls | |
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| How to Handle spam | |
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| The Local_check_Rule Sets | |
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| How DNSBL Works | |
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| Check Headers with Rule Sets | |
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| Relaying | |
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| The access Database | |
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| The Milter Library | |
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| Pitfalls | |
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| Test Rule Sets with -bt | |
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| Overview | |
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| Configuration Lines | |
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| Dump a sendmail Macro or Class | |
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| Show an Item | |
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| Complex Actions Made Simple | |
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| Process-Specified Addresses | |
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| Add Debugging for Detail | |
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| Batch Rule-Set Testing | |
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| Pitfalls | |
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| DNS and sendmail | |
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| Overview | |
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| How sendmail Uses DNS | |
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| Set Up MX Records | |
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| How to Use nslookup | |
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| Prepare for Disaster | |
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| Pitfalls | |
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| Maintain Security with sendmail | |
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| Why root? | |
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| The Environment | |
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| SMTP Probes | |
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| The Configuration File | |
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| Permissions | |
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| The Aliases File | |
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| Forged Mail | |
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| Security Features | |
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| Support SMTP AUTH | |
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| STARTTLS | |
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| Other Security Information | |
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| Pitfalls | |
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| Manage the Queue | |
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| Overview of the Queue | |
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| Parts of a Queued Message | |
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| Using Multiple Queue Directories | |
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| Queue Groups (V8.12 and Above) | |
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| Bogus qf Files | |
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| Printing the Queue | |
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| How the Queue Is Processed | |
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| Cause Queues to Be Processed | |
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| Process Alternate Queues | |
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| Pitfalls | |
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| The qf File Internals | |
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| Maintain Aliases | |
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| The aliases(5) File | |
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| Forms of Alias Delivery | |
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| Write a Delivery Agent Script | |
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| Special Aliases | |
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| The Aliases Database | |
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| Prevent Aliasing with -n | |
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| Pitfalls | |
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| Mailing Lists and [similar]/.forward | |
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| Internal Mailing Lists | |
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| :include: Mailing Lists | |
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| Defining a Mailing List Owner | |
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| Exploder Mailing Lists | |
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| Problems with Mailing Lists | |
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| Packages That Help | |
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| The User's [similar]/.forward File | |
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| Pitfalls | |
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| Signals, Transactions, and Syslog | |
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| Signal the Daemon | |
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| Log Transactions with -X | |
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| Log with syslog | |
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| Pitfalls | |
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| Alphabetized syslog Equates | |
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| The sendmail Command Line | |
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| Alternative argv[0] Names | |
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| Command-Line Switches | |
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| List of Recipient Addresses | |
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| Processing the Command Line | |
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| sendmail's exit() Status | |
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| Pitfalls | |
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| Alphabetized Command-Line Switches | |
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| Debug sendmail with -d | |
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| The Syntax of -d | |
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| The Behavior of -d | |
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| Interpret the Output | |
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| Table of All -d Categories | |
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| Pitfalls | |
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| Reference for -d in Numerical Order | |
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| The Configuration File | |
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| Configuration File Overview | |
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| Overall Syntax | |
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| Comments | |
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| V8 Comments | |
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| Continuation Lines | |
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| The V Configuration Command | |
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| Pitfalls | |
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| The R (Rules) Configuration Command | |
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| Why Rules? | |
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| The R Configuration Command | |
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| Tokenizing Rules | |
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| The Workspace | |
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| The Behavior of a Rule | |
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| The LHS | |
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| The RHS | |
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| Pitfalls | |
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| Rule Operator Reference | |
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| The S (Rule Sets) Configuration Command | |
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| The S Configuration Command | |
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| The Sequence of Rule Sets | |
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| The canonify Rule Set 3 | |
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| The final Rule Set 4 | |
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| The parse Rule Set 0 | |
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| The localaddr Rule Set 5 | |
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| Rule Sets 1 and 2 | |
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| Pitfalls | |
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| Policy Rule-Set Reference | |
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| The M (Mail Delivery Agent) Configuration Command | |
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| The M Configuration Command | |
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| The Symbolic Delivery Agent Name | |
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| The mc Configuration Syntax | |
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| Delivery Agents by Name | |
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| Delivery Agent Equates | |
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| How a Delivery Agent Is Executed | |
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| Pitfalls | |
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| Delivery Agent F= Flags | |
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| The D (Define a Macro) Configuration Command | |
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| Preassigned sendmail Macros | |
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| Command-Line Definitions | |
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| Configuration-File Definitions | |
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| Macro Names | |
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| Macro Expansion: $ and $& | |
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| Macro Conditionals: $?, $, and $. | |
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| Macros with mc Configuration | |
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| Pitfalls | |
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| Alphabetized sendmail Macros | |
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| The C and F (Class Macro) Configuration Commands | |
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| Class Configuration Commands | |
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| Access Classes in Rules | |
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| Classes with mc Configuration | |
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| Internal Class Macros | |
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| Pitfalls | |
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| Alphabetized Class Macros | |
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| The K (Database-Map) Configuration Command | |
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| Enable at Compile Time | |
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| The K Configuration Command | |
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| The K Command switches | |
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| Use $ (and $) in Rules | |
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| Database Maps with mc Configuration | |
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| Pitfalls | |
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| Alphabetized Database-Map Types | |
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| The O (Options) Configuration Command | |
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| Overview | |
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| Command-Line Options | |
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| configuration File Options | |
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| Options in the mc File | |
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| Alphabetical Table of All Options | |
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| Option Argument Types | |
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| Interrelating Options | |
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| Pitfalls | |
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| Alphabetized Options | |
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| The H (Headers) Configuration Command | |
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| Overview | |
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| Header Names | |
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| Header Field Contents | |
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| ?flags? in Header Definitions | |
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| Rules Check Header Contents | |
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| Header Behavior in conf.c | |
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| Headers and mc Configuration | |
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| Headers by Category | |
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| Forwarding with Resent Headers | |
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| Precedence | |
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| Pitfalls | |
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| Alphabetized Header Reference | |
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| Appendixes | |
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| The mc Configuration Macros and Directives | |
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| What's New Since V8.8 | |
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| Error Message Reference | |
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| The checkcompat() Cookbook | |
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| A Map to Tutorial Information | |
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| Bibliography | |
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| Index | |