Internet Email Protocols gathers, in one comprehensive and convenient resource, the key technologies that form the underlying mechanics of Internet email. It provides developers and networking professionals with in-depth explanations of essential concepts and a framework for understanding how and why these technologies fit together to provide cohesive email services. This book shows how to troubleshoot and solve email problems, how to evaluate different implementations of the standards and protocols, and how to be better equipped when faced with the challenge of writing programs that process email. For each chapter, the author presents an overview of the material, detailed information, and any important extensions and advanced uses of the protocols being discussed.
You will find in-depth descriptions of: *Message formats, covering the structure of message headers, the various fields, and the intricacies of email addresses, as well as a detailed treatment of MIME *Mail transport technology, focusing on the SMTP protocol *The most current versions of the POP and IMAP protocols *The mechanics of filtering email, with an emphasis on applying this knowledge to blocking unsolicited bulk email *The mechanics of mailing list processing, with an emphasis on applying information from earlier chapters *Security details, covering authentication, digital signatures, encryption, and anonymity In addition, the appendices provide example folder formats, a discussion on UNIX folder locking, and an overview of the languages commonly used for email development. The accompanying CD-ROM contains all the RFCs referenced in the book, as well as the source code for several popular email packages, including Sendmail and Procmail. Bringing together information that is scattered among many RFCs, software packages, and lore, this one detailed book is an important resource for anyone developing email applications. 0201432889B04062001
Sprache
Verlagsort
Verlagsgruppe
Zielgruppe
Für höhere Schule und Studium
Maße
Höhe: 235 mm
Breite: 185 mm
Dicke: 21 mm
Gewicht
ISBN-13
978-0-201-43288-6 (9780201432886)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Klassifikation
Kevin Johnson is a Senior Network Services Engineer for the Engineering Services Department of Motorola Inc.'s Motorola Computer Group. In this position, he designs and implements network, security, and system administration mechanisms for MCG Engineering. His primary focus is on email, Internet protocols, system architectures, and new technologies.
0201432889AB04062001
(Each chapter concludes with a Summary.)
List of Figures.
List of Tables.
Preface.
Acknowledgments.
1. Overview.
The View from 10,000 Feet.
Mail Transfer Agents.
Mail Delivery Agents.
Mail User Agents.
The Standards.
The Standards Process.
Augmented Backus-Naur Form.
A Brief History of Internet Email.
2. Mail Messages.
The Message.
The Body.
The Header.
Inside Fields.
Whitespace.
Atoms.
Comments.
Quoting.
Field Folding.
Case Sensitivity.
Backspaces.
Standard Fields.
Originator Fields.
Receiver Fields.
Reference Fields.
Trace Fields.
Resent Fields.
Other Fields.
Extension Fields.
Nonstandard Fields.
Some Examples.
A Simple Message.
Redistributing.
Forwarding.
Replying.
Email Addresses.
Mailboxes.
Group Lists.
Received Fields.
Field Elements.
Comments.
Machine Parsing.
Diagnosing Problems.
Date-Time Fields.
3. Mail Transport.
Interface Model.
Commands and Replies.
SMTP Sessions.
Protocol States.
Standard Commands.
Quit.
Help.
Noop.
Verify.
Expand.
Hello.
Mail From.
Recipient.
Data.
Reset.
Send.
Send or Mail.
Send and Mail.
Turnaround.
Local Extension Commands.
Mail Transactions.
Mailing.
Relaying.
Forwarding.
Operational Considerations.
Protocol Nonconformance.
Reliability and Responsibility.
Queuing.
Sending.
Receiving.
Timeouts.
Bounces.
Loop Detection.
Security.
Message Submission.
SMTP Extensions.
Message Size Declaration.
Command Pipelining.
8-bit MIME Transport.
Remote Message Queue Starting.
Enhanced Status Codes.
Delivery Status Notifications.
LMTP.
4. MIME.
Predecessors to MIME.
Overview of MIME.
MIME Headers.
MIME-Version.
Content-Type.
Content-Transfer-Encoding.
Content-ID.
Content-Description.
Content-Disposition.
Content-MD5.
Content-Language.
MIME Extension Fields.
MIME Media Types.
Text.
Image, Audio, and Video.
Application.
Message.
Multipart.
Other Media Types.
Message Header Extensions.
Charsets.
Encoding.
Using Encoding.
Mailcap Files.
General Syntax.
Fields.
Flags.
5. POP.
Interface Model.
Commands and Replies.
Protocol States.
Standard Commands.
User.
Password.
APOP.
Quit.
No Operation.
Status.
List.
Retrieve.
Top.
Delete.
Reset.
Unique-ID Listing.
Example POP Dialogs.
Basic Dialog.
Maildrop Summary.
Keeping Recent Messages on the Server.
POP Extensions.
Extended Service Offerings.
POP3 Extension Mechanism.
6. IMAP.
Interface Model.
Protocol States.
Commands and Responses.
Status Responses.
Server Data.
Command Continuation Request Responses.
More on Multiple Pending Commands.
Data Objects.
NIL.
Atoms.
Quoted Strings.
Literals.
Parenthesized Lists.
Mailbox Names.
Internal Date.
Size.
Message Numbers.
Unique Identifiers.
Message Flags.
Envelope Structure.
Body Structure.
Standard Commands.
Capability.
Noop.
Logout.
Login.
Authenticate.
List.
Create.
Delete.
Rename.
Status.
Select.
Examine.
Close.
Subscribe.
Unsubscribe.
Lsub.
Copy.
Append.
Check.
Search.
Fetch.
Store.
Expunge.
UID.
Experimental Commands.
Example IMAP Dialogs.
Replacing POP.
Folder Summary.
IMAP Extensions.
Nonsynchronizing Literals.
Idle.
Namespace.
Access Control Lists.
7. Filtering.
A Model for Filtering.
Available Inputs.
Condition Matching.
Filter Actions.
Filtering in Mail Agents.
MTA Filtering.
MDA Filtering.
MUA Filtering.
Basic Filtering.
Simple Personal Filtering.
Vacation.
Email Robots.
Unsolicited Email.
Relaying.
Known Offenders.
Originator and Recipient Fields.
Field Contents.
Telltale Fields.
Header Errors.
Message Bodies.
Opt-Out Lists.
Whitelists.
Prevention.
Advanced Filtering.
Scoring.
Collaborative Filtering.
Dynamic Email Addresses.
8. Mailing List Processing.
Precursors to Mailing Lists.
Personal Address Lists.
Group Lists.
MTA Alias Lists.
Basic List Processing.
Exploders.
Advanced List Processing.
Bounce Handling.
Administrative Commands.
Digests.
Archives.
Distributed List Processors.
9. Security.
Security Issues.
Eavesdropping.
Impersonation.
Denial of Service Attacks.
System Integrity.
Core Security Technologies.
Pseudo-Random Number Generation.
Cryptographic Hash Functions.
Symmetric Encryption.
Asymmetric Encryption.
ElGamal.
Security Services.
CRAM.
OTP.
Kerberos.
GSS-API.
OpenPGP.
Security Frameworks.
TLS.
SASL.
Protocol Security Extensions.
IMAP Extensions.
POP Extensions.
SMTP Extensions.
MIME Security.
Security Multiparts.
PGP.
S/MIME.
Anonymous Remailers.
Appendices.
A - Example Folder Formats.
B - UNIX Folder Locking.
C - Programming Languages.
D - IMSP.
E - ACAP.
F - LDAP.
Acronyms.
Index. 0201432889T04062001
