sendmail for Linux

✍ Scribed by Richard Blum, ANGIE WETHINGTON, Rich Blum

• Publisher: Sams
• Year: 2000
• Tongue: English
• Leaves: 541
• Category: Library

✦ Synopsis

sendmail for Linux instructs the small business network administrator to install and configure a full-featured Internet e-mail system with a minimum amount of expense. This is possible using the Linux Operating System which supplies all of the necessary server software in conjunction with Public Domain client e-mail software on local PC's. The first part of this book provides detailed descriptions of how e-mail works and how the protocols used for Internet e-mail operate. The second part of the book assists the network administrator in configuring a Linux system and connecting it to an ISP to send and receive Internet mail.

✦ Table of Contents

sendmail® for Linux®......Page 2
Copyright © 2000 by Sams Publishing......Page 3
Overview......Page 4
Contents......Page 5
About the Author......Page 12
Tell Us What You Think!......Page 14
Introduction......Page 16
Conventions Used in This Book......Page 19
PART I: Introduction to Email Services and Linux......Page 24
CHAPTER 1: Email Principles and Services......Page 26
Multi-Mainframe Email Systems......Page 27
Early UNIX Email Systems......Page 28
LAN-Based Email Systems......Page 35
Summary......Page 41
CHAPTER 2: Using Linux As a Mailserver......Page 44
The Linux Kernel......Page 45
Linux Libraries......Page 58
The GNU Project......Page 61
Linux Distributions......Page 66
Summary......Page 67
CHAPTER 3: Installing Communication Devices in Linux......Page 68
Communication Devices and Linux......Page 69
Installing and Configuring Network Cards......Page 71
Installing Modems......Page 79
Linux Modem Support......Page 87
Summary......Page 93
CHAPTER 4: DNS and Domain Names......Page 96
Domain Names......Page 97
Linux as a DNS Client......Page 112
Linux as a DNS Server......Page 122
Summary......Page 128
CHAPTER 5: SMTP Protocol......Page 130
SMTP Protocol Description......Page 131
Message Formats......Page 144
MIME and Binary Data......Page 149
Extended SMTP......Page 154
SMTP on Linux......Page 156
Summary......Page 160
CHAPTER 6: POP3 Protocol......Page 162
Description of the Post Office Protocol......Page 163
(.) on a line by itself. Linux POP3 Implementations......Page 177
Summary......Page 185
CHAPTER 7: IMAP Protocol......Page 188
Description of the Internet Mail Access Protocol......Page 189
Linux IMAP Implementation......Page 213
Using IMAP on Network Clients......Page 214
Summary......Page 217
CHAPTER 8: PPP Protocol......Page 218
PPP Protocol Overview......Page 219
PPP Protocol Frames......Page 220
PPP Negotiation Phases......Page 224
Linux PPP Implementations......Page 233
Summary......Page 246
CHAPTER 9: UUCP Protocol......Page 248
UUCP Protocol Description......Page 249
UUCP Protocol Types......Page 258
Taylor UUCP......Page 263
UUCP Commands......Page 270
Linux UUCP Implementation......Page 274
Summary......Page 278
CHAPTER 10: The sendmail Program......Page 280
sendmail Files and Directories......Page 281
The sendmail Command Syntax......Page 288
sendmail Configuration File......Page 294
Summary......Page 311
PART II: Installing Email Services in Linux......Page 312
CHAPTER 11: Installing and Configuring sendmail......Page 314
Installing sendmail......Page 315
Configuring sendmail......Page 319
Sample sendmail Configurations......Page 334
Summary......Page 343
CHAPTER 12: Installing and Configuring POP3 and IMAP......Page 344
Email Client Protocols......Page 346
qpopper......Page 349
University of Washington IMAP......Page 357
Summary......Page 363
CHAPTER 13: Connecting the Mailserver to an ISP......Page 364
Preliminary Issues......Page 365
Sample Mailserver Scenarios......Page 370
Summary......Page 387
CHAPTER 14: Mailserver Administration......Page 388
Userid Maintenance......Page 389
Monitoring the Mailserver......Page 400
Watching for Hackers and Spammers......Page 405
Summary......Page 406
CHAPTER 15: Configuring LAN Clients......Page 408
Requirements for a LAN Client......Page 409
Netscape Messenger......Page 417
Microsoft Outlook Express......Page 422
Qualcomm Eudora Light......Page 427
Summary......Page 430
PART III: Advanced Topics......Page 432
CHAPTER 16: Supporting Dial-In Clients......Page 434
Configuring Dial-In Modems......Page 435
Revisiting the mgetty Program......Page 441
Configuring Windows 95 and 98 Dial-Up Networking......Page 449
Configuring Windows NT 4.0 Dial-Up Networking......Page 451
Sharing a Modem......Page 455
CHAPTER 17: Mail Aliases and Masquerading......Page 458
The .forward File......Page 459
Aliases......Page 461
Masquerading......Page 464
Summary......Page 471
CHAPTER 18: Mail Lists......Page 474
Features of a Full Service Mail List......Page 475
Introducing Majordomo......Page 477
Using Majordomo......Page 490
Summary......Page 496
CHAPTER 19: IP Routing with Linux......Page 498
Methods of Network Connectivity Using Linux......Page 499
Using ipfwadm......Page 505
Using ipchains......Page 509
Configuring Network Clients for Routing......Page 515
Summary......Page 517
INDEX......Page 520