Contents Overview 1 Introduction to SMTP 2 Configuring Multiple SMTP Domain Names 12 Configuring an SMTP Virtual Server 13 Lab A: Creating an SMTP Virtual Server 27 Configuring an SMTP Connector 32 Troubleshooting SMTP Connectivity 38 Lab B: Creating SMTP Connectors 39 Review 45 Module 7: SMTP in Microsoft Exchange 2000 BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Information in this document is subject to change without notice. The names of companies, products, people, characters, and/or data mentioned herein are fictitious and are in no way intended to represent any real individual, company, product, or event, unless otherwise noted. Complying with all applicable copyright laws is the responsibility of the user. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Microsoft Corporation. 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Program Manager: Steve Thues Product Manager: Megan Camp Instructional Designers: Bill Higgins (Volt Technical), Jennifer Morrison, Priya Santhanam (NIIT (USA) Inc), Samantha Smith, Alan Smithee Instructional Software Design Engineers: Scott Serna Subject Matter Experts: Krista Anders, Megan Camp, Chris Gould (Global Logic Ltd), Janice Howd, Elizabeth Molony, Steve Schwartz (Implement.Com), Bill Wade (Wadeware LLC) Technical Contributors: Karim Batthish, Paul Bowden, Kevin Kaufman, Barry Steinglass, Jeff Wilkes Graphic Artist: Kimberly Jackson (Independent Contractor) Editing Manager: Lynette Skinner Editor: Kelly Baker Production Manager: Miracle Davis Build Manager: Julie Challenger Production Support: Marlene Lambert (Online Training Solutions, Inc) Test Manager: Eric Myers Courseware Testing: Robertson Lee (Volt) Creative Director, Media/Sim Services: David Mahlmann Web Development Lead: Lisa Pease CD Build Specialist: Julie Challenger Localization Manager: Rick Terek Operations Coordinator: John Williams Manufacturing Support: Laura King; Kathy Hershey Lead Product Manager, Release Management: Bo Galford Lead Product Manager, Messaging: Dave Phillips Group Manager, Courseware Infrastructure: David Bramble Group Product Manager, Content Development: Dean Murray General Manager: Robert Stewart Module 7: SMTP in Microsoft Exchange 2000 iii BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Instructor Notes This module provides students with the information necessary to understand the role of Simple Mail Transport Protocol (SMTP) in Microsoft ® Exchange 2000 messaging. Students will learn to configure and manage SMTP virtual servers, SMTP connectors, and SMTP queues. After completing this module, students will be able to: ! Describe the role of SMTP, Extension to SMTP (ESMTP), and Domain Name System (DNS) in Exchange 2000. ! Identify how SMTP is used in Exchange 2000. ! Configure Exchange 2000 recipients with multiple SMTP addresses. ! Configure an SMTP virtual server. ! Configure an SMTP connector. ! Identify the tools for troubleshooting SMTP connectivity. Materials and Preparation This section provides the materials and preparation tasks that you need to teach this module. Required Materials To teach this module, you need the following: ! Microsoft PowerPoint ® file 1572A_07.ppt Preparation Tasks To prepare for this module, you should: ! Read all the materials for this module. ! Complete the labs. ! Identify the appropriate PowerPoint slide for Lab B depending on how many domains are configured in the classroom. Remember to display the slide for the students at the beginning of Lab B. Presentation: 90 Minutes Lab: 45 Minutes iv Module 7: SMTP in Microsoft Exchange 2000 BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Module Strategy Use the following strategy to present this module: ! Introduction to SMTP This topic provides an overview of SMTP and ESMTP. Explain the role of SMTP in transporting messages. Explain how ESMTP extends SMTP functionality to support several messaging commands. Explain how DNS efficiently transports messages. ! Configuring Multiple SMTP Domain Names This topic covers information on how to configure Exchange 2000 recipients with multiple SMTP addresses. Explain how you can ensure that a recipient receives a message sent to him or her at any of the multiple SMTP addresses. ! Configuring an SMTP Virtual Server This topic covers information on when multiple virtual servers may be required and how to configure them. Explain the different ways in which you can secure virtual servers in an organization. Explain the usage of queues to handle message flow. ! Configuring an SMTP Connector This topic covers the benefits of adding an SMTP connector. Explain how to fine-tune the configuration of an SMTP connector to suit your organization. Explain how to achieve load balancing as well as fault tolerance by configuring more that one SMTP host. ! Troubleshooting SMTP Connectivity This topic covers information on the common tools used to troubleshoot SMTP connectivity. Module 7: SMTP in Microsoft Exchange 2000 v BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Customization Information This section identifies the lab setup requirements for the module and the configuration changes that occur on student computers during the labs. This information is provided to assist you in replicating or customizing Microsoft Official Curriculum (MOC) courseware. The labs in this module are also dependent on the classroom configuration that is specified in the Customization Information section at the end of the Classroom Setup Guide for course 1572A, Implementing and Managing Microsoft Exchange 2000. Lab Setup The following list describes the setup requirements for the labs in this module. Setup Requirement 1 The labs in this module require Exchange 2000 and a custom MMC. To prepare student computers to meet this requirement, perform one of the following actions: ! Complete the labs for Module 2, “Installing Microsoft Exchange 2000,” in course 1572A, Implementing and Managing Microsoft Exchange 2000. ! Install Exchange 2000 at D:\Program Files\Exchsrvr on each server into an organization named Northwind Traders. Components installed are Microsoft Exchange Messaging and Collaboration Services, Microsoft Exchange System Management Tools, and Microsoft Exchange Instant Messaging Service. Have the students create a custom MMC in the C:\Documents and Settings\All Users\Desktop that is saved as your_firstname Console. The MMC contains the Active Directory Users and Computers snap-in and the Exchange System snap-in. Setup Requirement 2 The labs in this module require a custom organizational unit, a user account for each student, a mailbox for each student, an Outlook profile, and for the Domain Admins group to be delegated full control of the organization. To prepare student computers to meet this requirement, perform one of the following actions: ! Complete the labs for Module 3, “Administering Microsoft Exchange 2000,” in course 1572A, Implementing and Managing Microsoft Exchange 2000. ! Create an organizational unit in Active Directory that is named your_servernameOU for each server in the classroom. Create a user account in each server’s organizational unit for each student. The account is a member of the Domain Admins group and has a mailbox on the student’s Exchange server. Create an Outlook profile for each student on their own server that opens their mailbox. Delegate the full administrator role on the Northwind Traders organization. Lab Results There are no configuration changes on student computers that affect replication or customization. Importan t Module 7: SMTP in Microsoft Exchange 2000 1 BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Overview ! Introduction to SMTP ! Configuring Multiple SMTP Domain Names ! Configuring an SMTP Virtual Server ! Configuring an SMTP Connector ! Troubleshooting SMTP Connectivity Simple Mail Transport Protocol (SMTP) is installed when you install Microsoft ® Windows ® 2000. In this module, you will learn about the importance of SMTP in messaging and how Exchange 2000 extends SMTP. After completing this module, you will be able to: ! Describe the role of SMTP, Extension to SMTP (ESMTP), and Domain Name System (DNS) in Exchange 2000. ! Configure multiple SMTP domain names. ! Configure an SMTP virtual server. ! Configure an SMTP connector. ! Identify the tools for troubleshooting SMTP connectivity. Topic Objective To provide an overview of the module topics and objectives. Lead-in In this module, you will learn to configure and manage virtual servers, SMTP connectors, and queues. 2 Module 7: SMTP in Microsoft Exchange 2000 BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY # ## # Introduction to SMTP ! SMTP Overview ! How SMTP Works ! ESMTP Overview ! How ESMTP Works ! DNS and SMTP ! SMTP Folders in Exchange 2000 SMTP is the standard protocol for transporting messages between Transmission Control Protocol/Internet Protocol (TCP/IP) hosts. SMTP is comprised of a series of plain-text commands used to transfer messages between hosts. ESMTP extends SMTP functionality to support several advanced messaging commands, such as host authentication and encryption. Topic Objective To provide an overview of SMTP. Lead-in SMTP and DNS are required for transporting messages. Module 7: SMTP in Microsoft Exchange 2000 3 BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY SMTP Overview Commands Commands Commands HELO fqdn HELO fqdn Description Description Description Identifies the sending SMTP host. Identifies the sending SMTP host. MAIL FROM:<sender> MAIL FROM:<sender> Identifies the sender of the message. Identifies the sender of the message. RCPT TO:<recipient> RCPT TO:<recipient> Identifies the recipient of the message. Identifies the recipient of the message. DATA DATA Indicates that the sending host is ready to send the message. Indicates that the sending host is ready to send the message. RSET RSET Aborts the current mail transaction. Aborts the current mail transaction. VRFY string VRFY string Allows the sending host to verify that the recipient is valid before sending the message. Allows the sending host to verify that the recipient is valid before sending the message. HELP <string> HELP <string> Lists the SMTP commands supported on the receiving host. Lists the SMTP commands supported on the receiving host. QUIT QUIT Disconnects the TCP session. Disconnects the TCP session. TURN TURN Triggers the recipient server to send queued messages destined to the sending server. Triggers the recipient server to send queued messages destined to the sending server. SMTP is an asymmetric request-response protocol. By default, SMTP uses TCP port 25 for transferring messages between two servers or for sending mail from a messaging client to a messaging server. For more information on SMTP, see Request for Comments (RFC) 821 and 822. SMTP Commands SMTP uses a series of plain-text commands that are passed from a sending host to a receiving host. The receiving host replies to these commands with one of several reply codes. The following table lists some commonly used SMTP commands. Command Description HELO fqdn Identifies the sending SMTP host. MAIL FROM:<sender> Identifies the sender of the message. RCPT TO:<recipient> Identifies the recipient of the message. This command is used for each recipient of the message. DATA Indicates that the sending host is ready to send the message. RSET Aborts the current mail transaction. VRFY string Allows the sending host to verify that the recipient is valid before sending the message. HELP [string] Lists the SMTP commands supported on the receiving host. QUIT Disconnects the TCP session. TURN Triggers the recipient server to send queued messages destined to the sending server. This command is used in dial-up environments to poll a host for queued messages. Topic Objective To list and describe the SMTP commands and reply codes. Lead-in SMTP is the default transport protocol used for delivering messages. Note 4 Module 7: SMTP in Microsoft Exchange 2000 BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY SMTP Reply Codes When the sending host issues an SMTP command to the receiving host, a reply code is returned. The following table lists some common reply codes. Reply Code Description 220 fqdn Service is ready 221 fqdn Service is closing transmission channel 250 Requested action is okay, and has been completed 354 Start message input; end with <CRLF>.<CRLF> 450 Requested action not taken: mailbox busy 451 Requested action aborted: local error in processing 452 Requested action not taken: insufficient system storage 500 Syntax error, command unrecognized 550 Requested action not taken: mailbox unavailable or not found 552 Requested action aborted: exceeded storage allocation 554 Transaction failed [...]... 26 Module 7: SMTP in Microsoft Exchange 2000 Configuring Global SMTP Parameters Topic Objective To describe global SMTP settings Maximum message size 2000 KB Lead -in Incoming Incoming There are some configuration options that you can globally apply to all the virtual servers in the organization NWTraders Maximum message size 5000 KB Outgoing Outgoing Filtering 192.168.0.0 Incoming Incoming Exchange 2000. .. PURPOSES ONLY 14 Module 7: SMTP in Microsoft Exchange 2000 Uses of SMTP Virtual Servers Topic Objective External DNS To identify the utility of configuring SMTP virtual servers Internal DNS Exchange 2000 Exchange 2000 SMTP SMTP Connector * Connector * Lead -in Configuring SMTP virtual server is useful in several situations Virtual Virtual Server Server A A A A Intranet Intranet No Routing Enabled Virtual... MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY 20 Module 7: SMTP in Microsoft Exchange 2000 Integrated Windows Authentication For clients running Windows 2000 and Microsoft Internet Explorer 5, Integrated Windows Authentication uses Kerberos and offers the best security, efficient communication, and transparency Integrated Windows authentication uses the Microsoft Windows NT® local... PIPELINING PIPELINING Some SMTP hosts, such as Windows 2000, support ESMTP ESMTP extends SMTP functionality to support a variety of messaging commands With ESMTP, a sending host can determine if the receiving host supports ESMTP and then communicate accordingly Note For more information on ESMTP, see RFC 1869 ESMTP Commands The graphic lists the ESMTP commands that most commonly used The following table... receiving host does not support ESMTP, it returns a code 500 (Error) response In such a case, the sending host issues a HELO command to initiate a normal SMTP connection sequence BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Module 7: SMTP in Microsoft Exchange 2000 9 DNS and SMTP Topic Objective Establishing Records Selecting an A Record Session Locating MX MXSMTP in DNS... resolved, an SMTP session is established with the receiving SMTP host BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY 10 Module 7: SMTP in Microsoft Exchange 2000 SMTP Folders in Exchange 2000 Topic Objective To identify the folders used by SMTP Lead -in SMTP uses three system folders to store in- transit messages temporarily SMTP SMTP C:\Program Files\Exchsrvr\Mailroot C:\Program... Preference SMTP host MX 10 Smtp1 .nwtraders.msft MX 20 Smtp2 .nwtraders.msft Note For information on registering a domain name, see http://rs.internic.net BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Module 7: SMTP in Microsoft Exchange 2000 13 # Configuring an SMTP Virtual Server Topic Objective To introduce this topic Lead -in You can create virtual servers to segment SMTP traffic... configurations ! Uses of SMTP Virtual Servers ! Configuring a Virtual Server ! Implementing Security ! Configuring Exchange 2000 to Use a Smart Host ! Configuring Exchange 2000 as a Relay Host ! Managing SMTP Virtual Server Queues ! Configuring Global SMTP Parameters With Exchange 2000, you can create multiple virtual servers for each Internet protocol, such as SMTP Creating multiple SMTP virtual servers... configured with an internal DNS address so that it can resolve the next hop within the Exchange 2000 organization BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY Module 7: SMTP in Microsoft Exchange 2000 15 When messages are sent to Internet recipients from within the Exchange 2000 organization, they will be routed to one of the local servers specified on the SMTP connector Virtual... domain, but only forward them to specific domains, in this case, the other domains in your organization Domains that you want to relay messages to can be configured on an SMTP connector BETA MATERIALS FOR MICROSOFT CERTIFIED TRAINER PREPARATION PURPOSES ONLY 24 Module 7: SMTP in Microsoft Exchange 2000 Managing SMTP Virtual Server Queues Topic Objective [Local Domain Name] (Local Delivery) To identify the . labs for Module 2, “Installing Microsoft Exchange 2000, ” in course 1572A, Implementing and Managing Microsoft Exchange 2000. ! Install Exchange 2000 at. Extension to SMTP (ESMTP), and Domain Name System (DNS) in Exchange 2000. ! Identify how SMTP is used in Exchange 2000. ! Configure Exchange 2000 recipients