Acknowledgments | p. xiii |
About the Author | p. xv |
About the Technical Reviewer | p. xvii |
Introduction | p. xix |
Introducing qmail | p. 1 |
Overview | p. 2 |
What Is qmail? | p. 2 |
Why Use qmail? | p. 3 |
Why Not Use qmail? | p. 9 |
Qmail Features | p. 12 |
History | p. 15 |
Architecture | p. 16 |
License | p. 19 |
Documentation | p. 20 |
Support | p. 23 |
Conclusion | p. 25 |
Installing qmail | p. 27 |
Overview | p. 27 |
Preparing to Install qmail | p. 28 |
Installing qmail: Quick-Start Instructions | p. 38 |
Installing qmail Step by Step | p. 52 |
An Overview of the Finished Product | p. 86 |
Installing from RPMs | p. 87 |
Conclusion | p. 91 |
Configuring qmail: The Basics | p. 93 |
Overview | p. 93 |
Control Files Reference | p. 93 |
Relaying | p. 110 |
Multiple Host Names | p. 115 |
Virtual Domains | p. 115 |
Aliases | p. 116 |
The qmail-users Mechanism | p. 117 |
Conclusion | p. 119 |
Using qmail | p. 121 |
Overview | p. 121 |
Sending Messages | p. 121 |
Receiving Messages | p. 136 |
User Utilities | p. 148 |
Conclusion | p. 156 |
Managing qmail | p. 159 |
Overview | p. 159 |
Understanding the qmailctl Script | p. 159 |
Learning qmail's Management Commands | p. 165 |
Managing the Queue | p. 187 |
Conclusion | p. 198 |
Troubleshooting qmail | p. 199 |
Overview | p. 199 |
Process Monitoring | p. 200 |
Understanding Logs | p. 201 |
Using Message Headers | p. 211 |
Testing | p. 217 |
Fixing Common Problems | p. 218 |
Conclusion | p. 223 |
Configuring qmail: Advanced Options | p. 225 |
Overview | p. 225 |
Setting Up Typical Configurations | p. 226 |
Migrating from Sendmail to qmail | p. 237 |
Modifying the Source Code | p. 249 |
Using Quick Mail Transfer Protocol | p. 254 |
Using Quick Mail Queuing Protocol | p. 258 |
Securing SMTP | p. 264 |
Performance Tuning | p. 273 |
Conclusion | p. 284 |
Controlling Junk Mail | p. 285 |
Overview | p. 286 |
An Ounce of Prevention | p. 286 |
Setting System-Level Controls | p. 287 |
Setting User-Level Controls | p. 292 |
Conclusion | p. 294 |
Managing Mailing Lists | p. 295 |
Overview | p. 295 |
Setting Up Simple Mailing Lists | p. 295 |
Working with ezmlm | p. 297 |
Working with Majordomo | p. 305 |
Working with Mailman | p. 315 |
Using Other MLMs | p. 324 |
Conclusion | p. 326 |
Serving Mailboxes | p. 327 |
Overview | p. 328 |
Installing and Using POP3 Servers | p. 328 |
Installing and Using IMAP Servers | p. 344 |
Securing POP3 | p. 353 |
Securing IMAP | p. 362 |
Retrieving Mail with POP3 and IMAP | p. 369 |
Conclusion | p. 374 |
Hosting Virtual Domain and Users | p. 375 |
Overview | p. 376 |
Choosing between VMailMgr and Vpopmail | p. 376 |
Using VMailMgr | p. 377 |
Using Vpopmail | p. 383 |
Conclusion | p. 389 |
Understanding Advanced Topics | p. 391 |
Overview | p. 391 |
Single-Recipient Delivery vs. Multiple-Recipient Delivery | p. 391 |
Using Variable Envelope Return Paths | p. 394 |
Configuring Scalable Servers | p. 395 |
Using Lightweight Directory Access Protocol | p. 401 |
Using Structured Query Language | p. 402 |
Virus Scanning | p. 403 |
Conclusion | p. 414 |
How qmail Works | p. 417 |
High-Level Overview | p. 417 |
Receiving Modules | p. 418 |
Sending Modules | p. 425 |
Related Packages | p. 431 |
checkpassword | p. 431 |
Courier-IMAP | p. 432 |
daemontools | p. 432 |
djbdns | p. 432 |
dot-forward | p. 433 |
ezmlm | p. 433 |
ezmlm-idx | p. 433 |
fastforward | p. 434 |
getmail | p. 434 |
maildrop | p. 434 |
mess822 | p. 435 |
oMail-webmail | p. 435 |
oSpam | p. 435 |
qlogtools | p. 436 |
qmail-autoresponder | p. 436 |
qmail-qfilter | p. 436 |
qmail-Scanner | p. 437 |
qmail-vacation | p. 437 |
qmailanalog | p. 437 |
safecat | p. 439 |
serialmail | p. 439 |
SqWebMail | p. 440 |
syncdir | p. 440 |
TMDA | p. 440 |
ucspi-tcp | p. 441 |
VMailMgr | p. 441 |
Vpopmail | p. 441 |
How Internet Mail Works | p. 443 |
How a Message Gets from Point A to Point B | p. 443 |
Envelopes vs. Headers | p. 444 |
Finding More Information | p. 446 |
qmail Features | p. 449 |
Setup Features | p. 449 |
Security Features | p. 449 |
Message Construction | p. 450 |
SMTP Service | p. 450 |
Queue Management | p. 451 |
Bounces | p. 452 |
Routing by Domain | p. 453 |
SMTP Delivery | p. 453 |
Forwarding and Mailing Lists | p. 454 |
Local Delivery | p. 454 |
POP3 Service | p. 455 |
Error Messages | p. 457 |
Interactive Error Messages | p. 457 |
Log Messages | p. 457 |
Bounce Messages | p. 459 |
Gotchas | p. 465 |
qmail Doesn't Deliver to Superusers | p. 465 |
qmail Doesn't Deliver to Users Who Don't Own Their Home Directory | p. 465 |
qmail Doesn't Deliver to Users Whose Usernames Contain Uppercase Letters | p. 465 |
qmail Replaces Dots (.) in Extension Addresses with Colons (:) | p. 466 |
qmail Converts Uppercase Characters in Extension Addresses to Lowercase | p. 466 |
qmail Doesn't Use /etc/hosts | p. 466 |
qmail Doesn't Log SMTP Activity | p. 466 |
qmail Doesn't Generate Deferral Notices | p. 467 |
qmail Is Slow If trigger Is Wrong | p. 467 |
DNS or IDENT Lookups Can Make SMTP Slow | p. 467 |
qmail-smtpd Accepts Mail for All Recipients | p. 467 |
qmail-smtpd Doesn't Automatically Relay for the Local Host | p. 468 |
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