Tài liệu Module 7: Configuring IIS to Provide E-Mail Support doc

Module 7: Configuring IIS to Provide E-Mail Support Contents Overview Introduction to the SMTP Service Configuring Support for the SMTP Service Controlling E-Mail Messages 12 Configuring Security for the SMTP Service 19 Managing the SMTP Service 28 Lab A: Configuring and Testing the SMTP Service 35 Review 45 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 If, however, your only means of access is electronic, permission to print one copy is hereby granted Microsoft may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document Except as expressly provided in any written license agreement from Microsoft, the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property  2001 Microsoft Corporation All rights reserved Microsoft, Active Directory, ActiveX, BackOffice, FrontPage, MS-DOS, Outlook, PowerPoint, SQL Server, Visual Basic, Visual InterDev, Visual SourceSafe, Visual Studio, Windows, Win32, Windows Media, and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the U.S.A and/or other countries Other product and company names mentioned herein may be the trademarks of their respective owners Module 7: Configuring IIS to Provide E-Mail Support iii Instructor Notes Presentation: 45 Minutes This module provides students with the knowledge and skills to provide e-mail support in Microsoft® Internet Information Services (IIS) 5.0 Lab: 30 Minutes After completing this module, students will be able to: Explain what the Simple Mail Transfer Protocol (SMTP) service is and how it works Configure support for the SMTP service Control e-mail messages for the SMTP service Configure security for the SMTP service Manage the SMTP service 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 Microsoft PowerPoint® file 2295A_07.ppt Preparation Tasks To prepare for this module, you should: Read all of the materials for this module Complete the labs iv Module 7: Configuring IIS to Provide E-Mail Support Module Strategy Use the following strategy to present this module: Introduction to the SMTP Service Explain that SMTP is the Internet standard for e-mail message delivery Describe how the SMTP service works in IIS, and how the SMTP server sends and receives e-mail messages Explain that, if they did not enable the SMTP service during Microsoft Windows® 2000 installation, they can enable it by using Add/Remove Programs in Control Panel Configuring Support for the SMTP Service Explain that you designate an SMTP virtual server by its Internet Protocol (IP) address and Transmission Control Protocol (TCP) port number Discuss local and remote domains Discuss alias domains, and explain that they are just another name for a local domain and cannot be configured Discuss how remote domains are used to override the SMTP virtual server’s default settings for sending messages Display the SMTP folders and discuss how each is used Controlling E-Mail Messages Explain the different settings that are available to control the flow of messages to and from the SMTP server Discuss that, although these settings may improve server performance, they also have trade-offs that need to be considered Diagram a situation that uses a smart host Configuring Security for the SMTP Service Discuss the various security risks to an SMTP server, and explain the corresponding methods to mitigate these risks Explain that connections to the SMTP server can be controlled by granting or denying access to specific IP addresses, groups of addresses, or by domain name Discuss when encryption should be used, and demonstrate how to enable Transport Layer Security (TLS) encryption Explain the types of authentication that are available for SMTP connections, and discuss the benefits and limitations of each Explain that DNS reverse lookup can be enabled on an SMTP server to enhance security, but will severely impact performance Managing the SMTP Service Explain that monitoring the SMTP service will help optimize performance Demonstrate the System Monitor (Performance tool), and discuss which performance counters aid in monitoring and troubleshooting the SMTP service Discuss the importance of logging, and demonstrate the different log file formats Discuss the ways to troubleshoot the SMTP service, and demonstrate the various methods Module 7: Configuring IIS to Provide E-Mail Support v Customization Information This section identifies the lab setup requirements for a 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 Lab Setup The lab in this module requires the SMTP service to be installed with the e-mail folders on drive D This activity is completed in Module 1, “Installing Internet Information Services 5.0,” in Course 2295A, Implementing and Supporting Microsoft Internet Information Services 5.0 To prepare student computers to meet this requirement, perform one of the following actions: Complete Module 1, “Installing Internet Information Services 5.0” in Course 2295A, Implementing and Supporting Microsoft Internet Information Services 5.0 Configure the setup requirement manually Lab Results After performing the lab in this module, the SMTP service is configured to require authentication No other modules in this course are affected by this change Module 7: Configuring IIS to Provide E-Mail Support Overview Topic Objective To provide an overview of the module topics and objectives Lead-in In this module, you will learn about using the Microsoft SMTP service Introduction to the SMTP Service Configuring Support for the SMTP Service Controlling E-Mail Messages Configuring Security for the SMTP Service Managing the SMTP Service *****************************ILLEGAL FOR NON-TRAINER USE****************************** E-mail is the most widely used Internet service, and the standard protocol that is used by e-mail clients and servers to deliver electronic messages over the Internet is the Simple Mail Transfer Protocol (SMTP) To provide e-mail message access on your Web servers and applications, Microsoft® Windows® 2000 provides the SMTP service The SMTP service in Microsoft Internet Information Services (IIS) 5.0 enables you to easily administer your SMTP server, control inbound and outbound e-mail messages, provide security so that the server is not misused or attacked by unauthorized users, and use management tools to optimize the performance of your SMTP server After completing this module, you will be able to: Explain what the SMTP service is and how it works Configure support for the SMTP service Control e-mail messages for the SMTP service Configure security for the SMTP service Manage the SMTP service Module 7: Configuring IIS to Provide E-Mail Support Introduction to the SMTP Service Topic Objective To provide an overview of the SMTP service in IIS Incoming Message Local Message Delivered Lead-in The SMTP service enables Windows 2000 to exchange e-mail messages with other SMTP servers SMTP Virtual Server Remote Message Sent to Remote SMTP Server Send *****************************ILLEGAL FOR NON-TRAINER USE****************************** With the SMTP service enabled, IIS can send and receive e-mail messages, and this capability enables the following: Web-based applications to send and receive messages SMTP servers to exchange e-mail messages Administrators to receive e-mail messages that are driven by events on the Web server, such as users sending forms from Web pages Sending and Receiving E-Mail Messages When a user sends an e-mail message, the delivery process begins with the message being transmitted to an SMTP server If the destination domain name of the message is local to the SMTP server, the message is stored on that server If the domain name is not local to the SMTP server, the message is then forwarded to a remote server To find the remote server, the SMTP server performs a Domain Name System (DNS) lookup for the destination domain The SMTP server checks the DNS Mail Exchanger (MX) record, which is the name of the SMTP server that is servicing all incoming e-mail messages for the remote domain After the Internet Protocol (IP) address is located, the local SMTP server connects to the remote server and sends the message Module 7: Configuring IIS to Provide E-Mail Support The SMTP service is not designed as a system for users to retrieve messages by using an e-mail client such as Microsoft Outlook® or Microsoft Outlook Express E-mail message retrieval is defined by the Post Office Protocol (POP), which is not built into the IIS SMTP server The SMTP service is designed to send messages from forms, Microsoft FrontPage®-enabled Webs, or scripts hosted by IIS To enable users to send e-mail messages to anyone on the Internet directly from a Microsoft Active Server Page (ASP) script or program on your Web site, Windows 2000 includes a component for handling messages, called the Collaboration Data Objects for Microsoft Windows NT® Server, also known as the CDO for NTS Library The SMTP service is installed by default when you install Windows 2000 However, if it is uninstalled for any reason, you can reinstall it by performing the following steps: Open Control Panel, and then double click Add/Remove Programs In Add Remove Programs, click Add/Remove Windows Components In the Windows Components Wizard, click Internet Information Services (IIS), and then click Details Important Do not deselect the Internet Information Services (IIS) check box This will uninstall IIS components In the Subcomponents of Internet Information Services (IIS) dialog box, select the SMTP service check box, and then click OK Module 7: Configuring IIS to Provide E-Mail Support Configuring Support for the SMTP Service Topic Objective To explain how to configure support for the SMTP service Lead-in To effectively support the SMTP service, you need to designate the virtual server, configure the domains, and understand the SMTP folder structure Designating an SMTP Virtual Server Configuring Local and Remote Domains Examining the SMTP Service Folder Structure *****************************ILLEGAL FOR NON-TRAINER USE****************************** To effectively support the SMTP service, you need to: Ensure that each SMTP server is designated as its own virtual server and does not have the same IP address or Transmission Control Protocol (TCP) port number as other virtual servers Configure local and remote domains for effective e-mail message delivery Understand the SMTP folder structure that is created during installation 32 Module 7: Configuring IIS to Provide E-Mail Support The following table lists some factors to consider when you set up log files Consider Description Recording frequency How often the files will log: daily, weekly, or monthly Log the file format and contents What data will be included in the log file Log the file size Whether the log file size will be set to unlimited or to a specific size To enable logging that uses one of the ASCII text formats: In the IIS snap-in, right-click the virtual server that you want to configure, and then click Properties On the General tab, select the Enable logging check box Under Active log format, select a transaction log format from the list, and then click Properties In the Extended Logging Properties dialog box, under New Log Time Period, click either Unlimited file size or When file size reaches, and then type in the log file size Under Log file directory, type in the desired location of the log file, and then click OK If you selected the W3C Extended Logging format check box on the Extended Properties tab, click the items that you want to track, and then click OK If you set up the file in a location other than the default, make sure that it is stored on a local drive and not on a network Note It is important to back up and remove older log files so that the system doesn't run out of disk space when writing to the current transaction log file Module 7: Configuring IIS to Provide E-Mail Support 33 Troubleshooting the SMTP Service Topic Objective To explain some of the ways to troubleshoot the SMTP service Lead-in If you have issues with your SMTP virtual servers, you can troubleshoot by using non-delivery reports, the Badmail folder, and the Windows 2000 event logs Forward Non-Delivery Reports for Review Forward Non-Delivery Reports for Review Review Files in the Badmail Folder Review Files in the Badmail Folder Review the Windows 2000 Event Logs Review the Windows 2000 Event Logs Check the Status of the SMTP Service Check the Status of the SMTP Service *****************************ILLEGAL FOR NON-TRAINER USE****************************** You can monitor transmissions and make configuration adjustments to prevent problems If errors still occur, you can troubleshoot by using non-delivery reports, the Badmail folder, and the Windows 2000 event logs You can also check the status of the SMTP service to ensure that it is running Forwarding Non-Delivery Reports for Review When a message is undeliverable, SMTP service returns it to the sender with a non-delivery report (NDR) NDRs can contain useful troubleshooting information, such as the address of the destination servers, reason for rejecting the message, and information about why the message was not delivered You can designate that copies of the NDR be sent to an existing mailbox on another server To specify which e-mail address will receive copies of NDRs: In the IIS snap-in, right-click the virtual server that you want to configure, and then click Properties On the Messages tab, in the Send copy of Non-Delivery report to box, type the e-mail address of the mailbox that you want to use This can be any valid SMTP e-mail address Reviewing Files in the Badmail Folder If a message has reached the retry limit and cannot be delivered to the sender, a copy of the message is placed in the Badmail folder Messages placed in the Badmail folder cannot be delivered or returned Use Windows Explorer to check the contents of this folder for messages that could not be delivered; a large number of messages indicates delivery problems such as a DNS or network failure 34 Module 7: Configuring IIS to Provide E-Mail Support Reviewing the Windows 2000 Event Logs The Windows 2000 event logs verify that the SMTP service is performing correctly by tracking informational, warning, and error events, all of which require administrator attention Three logs are available: System, Security, and Application Logging predetermined events begins automatically whenever you start Windows 2000 Server For each type of log, you can designate the maximum size, how long to save entries, and whether to either automatically overwrite existing events when the log is full or manually clear entries Monitor these logs closely and archive them periodically to avoid running out of space To avoid losing information, clear the logs occasionally so that the SMTP service can continue to write new events Checking the Status of the SMTP Service You can use several different methods to see whether the SMTP service is running One method is to click Start, point to Programs, point to Administrative Tools, and then click Services The Microsoft SMTP service status will be shown in the list You can also get a list of running services by opening a command prompt and typing net start A more direct approach to checking the STMP service status is to attempt to establish a telnet connection with the SMTP port of the server You can this by opening a command prompt and typing the following: telnet localhost smtp If the SMTP service is available, you will make a connection and then see a welcome message To avoid leaving the connection in an idle state, type quit and press ENTER Depending on how your telnet client is configured, you may not see what you type If the server is unavailable, you will not be able to establish the telnet connection Module 7: Configuring IIS to Provide E-Mail Support 35 Lab A: Configuring and Testing the SMTP Service Topic Objective To introduce the lab Lead-in In this lab, you will configure the SMTP service and test it by sending several e-mail messages *****************************ILLEGAL FOR NON-TRAINER USE****************************** Objectives After completing this lab, you will be able to: Configure the SMTP virtual server Secure access to the SMTP virtual server Test the SMTP service without an e-mail client Test the SMTP service with an e-mail client Prerequisites Before working on this lab, you must have: Familiarity with the Internet Services Manager Familiarity with Outlook Express A lab partner running Windows 2000 Advanced Server Estimated time to complete this lab: 30 minutes 36 Module 7: Configuring IIS to Provide E-Mail Support Exercise Configuring the SMTP Virtual Server In this exercise, you will configure security settings for the default SMTP virtual server You will then configure e-mail message delivery options and create an alias domain Finally, you will confirm the folder structure of the SMTP service Scenario You must set up an SMTP virtual server for your organization The default security and message delivery settings for SMTP provide basic functionality and security for your SMTP server However, you want to adjust these settings to provide tighter security and more control over message delivery Tasks Log on as Administrator with a password of password, open the IIS snap-in, and expand Default SMTP Virtual Server to view its contents Detailed steps a Log on to your computer as Administrator with a password of password b From the Start menu, point to Programs, point to Administrative Tools, and then click Internet Services Manager In Administrative Tools, the IIS console is called Internet Services Manager; however, when you open the console, it is called Internet Information Services, also known as the IIS snap-in c In the IIS snap-in, expand server_name (where server_name is the name of your server), and then expand Default SMTP Virtual Server Configure access settings for Default SMTP Virtual Server to prevent anonymous and basic authentication and to require Windows security package a Right-click Default SMTP Virtual Server, and then click Properties b On the Access tab, under Access control, click Authentication c In the Authentication dialog box, clear the Anonymous access and Basic authentication check boxes, leaving only the Windows security package check box selected, and then click OK Enable logging, and then save the log files in Microsoft IIS log file format in the default location a On the General tab, select the Enable logging check box b In the Active log format list, click Microsoft IIS Log File Format, and then click Properties c In the Microsoft Logging Properties dialog box, under Log file directory, find and make a note of the default location for SMTP log files, and then click OK What is the default location for SMTP log files? The default location is C:\WINNT\system32\LogFiles\SmtpSvc1\ Module 7: Configuring IIS to Provide E-Mail Support Tasks 37 Detailed steps Configure the SMTP message delivery settings to prevent delivery of incoming messages over 100 KB in size a On the Messages tab, in the Limit message size to (KB) box, type 100 b Note the default limits for session size, messages per connection, and recipients per message, and then click OK Add an alias to the default domain, and name it last_name.msft (where last_name is your last name) a In the IIS snap-in, in the console tree, right-click Domains, point to New, and then click Domain b In the New SMTP Domain Wizard, select Alias, and then click Next c Type last_name.msft (where last_name is your last name), and then click Finish d In the IIS snap-in, click Domains, and in the details pane, verify that the new alias domain is listed under the default domain name What properties can be set for an alias? None When you right-click the alias and click Properties, there are no configurable options (continued) e Close the IIS snap-in 38 Module 7: Configuring IIS to Provide E-Mail Support Exercise Testing the SMTP Virtual Server In this exercise, you will test the settings that you configured for the SMTP server, make additional changes to the SMTP server settings, and then re-test the settings Scenario Now that you have changed the security and message delivery settings for your SMTP server, you want to test the server To this, you can use an e-mail client or you can manually place e-mail messages in the Pickup folder SMTP attempts to deliver a message immediately when it is copied to the Pickup folder If the message is properly formatted, it is delivered to the destination SMTP server and placed in that server’s Drop folder If the message is undeliverable, SMTP places it in the Badmail folder, and attempts to redeliver the message at defined intervals Tasks b In Notepad, type a message to yourself Do not include any header information For example, your entire message may read, “This is a very important e-mail message.” On the File menu, click Save As In the Save As dialog box, in the left pane, click Desktop e In the File name box, type Mail_1.txt and then click Save f Close Notepad a On the desktop, right-click Mail_1, and then click Copy b Right-click My Computer, and then click Explore c In the left pane of Windows Explorer, expand Local Disk (D:), expand the Inetpub folder, and then expand the mailroot folder d Right-click the Pickup folder, and then click Paste e Copy Mail_1.txt to the Pickup folder On the Start menu, point to Programs, point to Accessories, and then click Notepad d a c Create a text message and save it on the desktop as Mail_1.txt Detailed steps In the left pane of Windows Explorer, click the Pickup folder Is Mail_1.txt in the Pickup folder? Why or why not? No The file has been moved by SMTP (continued) f In the left pane of Windows Explorer, click the Badmail folder Module 7: Configuring IIS to Provide E-Mail Support Tasks 39 Detailed steps Where is the new copy of Mail_1.txt? Why? The copy is in the Badmail folder SMTP tried to deliver the message as soon as it was copied to the Pickup folder, but was not provided with any delivery information Therefore, SMTP placed the message in the Badmail folder Create a new message in Notepad with the proper e-mail header information so that SMTP can deliver the message Then, save the file on the desktop as Mail_2.txt a Open Notepad and then type the following five lines of header information into the new message: x-sender: your_name@server_name.domain_name x-receiver: your_name@server_name.domain_name From: your_name@server_name.domain_name To: your_name@server_name.domain_name Subject: Test e-mail message (where your_name is your first name, server_name is the name of your computer, and domain_name is the name of the domain For example, on the server named Vancouver in the nwtraders.msft domain, you might type jane@vancouver.nwtraders.msft.) b c In the Save As dialog box, in the left pane, click Desktop e In the File name box, type Mail_2.txt and then click Save f Close Notepad a On the desktop, right-click Mail_2, and then click Copy b In Windows Explorer, in the left pane, right-click the Pickup folder, and then click Paste c Copy Mail_2.txt to the Pickup folder On the File menu, click Save As d Add a blank line below the header information, and then type a message In Windows Explorer, in the left pane, click the Pickup folder Is Mail_2.txt in the Pickup folder? Why or why not? No SMTP has delivered the message Check the contents of the Drop folder a In the left pane of Windows Explorer, click the Drop folder 40 Module 7: Configuring IIS to Provide E-Mail Support Tasks Detailed steps Where is the copy of Mail_2.txt? Why? Mail_2.txt is in the Drop folder because SMTP read the header information and successfully delivered the message Open Mail_2.txt, change the header information to send the message to yourself at the last_name.msft domain, and then save the file as Mail_3.txt a On the desktop, double-click Mail_2 b In Notepad, change the following two lines in the message header to read: x-receiver: your_name@alias_name To: your_name@alias_name (where your_name is your first name and alias_name is the name that you assigned to the alias domain, which should be your last name followed by msft For example, the x-receiver line may read “xreceiver: jane@doe.msft”) c d In the File name box, type Mail_3.txt and then click Save f Close Notepad a On the desktop, right-click Mail_3, and then click Copy b In Windows Explorer, in the left pane, right-click the Pickup folder, and then click Paste c Copy Mail_3.txt to the Pickup folder In the Save As dialog box, in the left pane, click Desktop e On the File menu, click Save As In Windows Explorer, in the left pane, click the Drop folder Where is the copy of Mail_3.txt? Why? Can you change this? Mail_3.txt is in the Drop folder because SMTP read the header information and successfully delivered the message to the alias domain’s Drop folder The alias domain uses the same Drop folder as the default domain This setting cannot be changed Note: Because the server only applies the message limits to messages that it receives over SMTP, we will test the limits by attempting to send a large message to a different server that has the message size limits set Identify another student who has message size limits set on his or her server as performed in Exercise 1, step Module 7: Configuring IIS to Provide E-Mail Support Tasks Open C:\MOC\2295A\Labs\Mod7 \Bigfile.txt Change the header information to send the message to a server that has message limits in place Next, save the file and copy it to the Pickup folder 41 Detailed steps a In Windows Explorer, expand Local Disk (C:), expand MOC, expand 2295A, expand Labs, click the Mod7 folder, and then double-click Bigfile b In Notepad, in the message, change the x-sender and From lines so that the message will be sent from your domain For example, if your computer is named Denver and is in the nwtraders.msft domain, change the x-sender and From lines to student@denver.nwtraders.msft c Change the x-receiver and To lines so that the message will be sent to the SMTP domain on another student’s computer For example, if the other student’s computer is named Vancouver and is in the nwtraders.msft domain, change the x-receiver and To lines to read student@vancouver.nwtraders.msft d Save the file to the desktop as Bigfile.txt, and then close Notepad e Copy Bigfile.txt to the Pickup folder What happens to Bigfile.txt? Why? Bigfile.txt is delivered to the Drop folder on your computer If you open the message, you will see that it contains a non-delivery report because it exceeds the receiver’s maximum message size as set in the SMTP configuration If message size limits had not been set, the message would be in the Drop folder on the receiver’s computer 42 Module 7: Configuring IIS to Provide E-Mail Support Exercise Using the Masquerade Domain Name In this exercise, you will configure a masquerade name for the domain You will then use Outlook Express to send an e-mail message and verify that the sending domain name has been masqueraded Scenario The SMTP server that you are configuring will be used as a smart host to relay messages from your organization You would like all messages that are relayed by your server to come from the domain contoso.msft Consequently, you will configure and test the masquerade domain name Tasks Configure Outlook Express with a new e-mail address using your local server and domain name for the POP3 and SMTP servers In the IIS snap in, in the console tree, expand server_name (where server_name is the name of your server), right-click Default SMTP Virtual Server, and then click Properties b On the Delivery tab, click Advanced In the Masquerade domain box, type contoso.msft d a c Configure the default SMTP server to use a masquerade domain name of contoso.msft Detailed steps Click OK twice, and then close the IIS snap-in a On the Start menu, point to Programs, and then click Outlook Express b If the Internet Connect Wizard appears, skip to step c Otherwise, perform the following step: • On the Tools menu, click Accounts, click Add, and then click Mail c In the Internet Connect Wizard, on the Your Name page, in the Display name box, enter your first and last name, and then click Next d On the Internet E-mail Address page, select the I already have an e-mail address that I’d like to use check box, enter a fictitious e-mail address for your local domain name (for example, jane@vancouver.nwtraders.msft), and then click Next e On the E-mail Server Names page, click POP3 for the incoming e-mail server type and, in both the Incoming mail box and the Outgoing mail box, type your domain name (for example, the POP3 and SMTP server names may both be vancouver.nwtraders.msft), and then click Next f On the Internet Mail Logon page, verify that the account name is the same name that you used for the Internet e-mail address (“jane” in our example), leave the password blank, click Next, and then click Finish Module 7: Configuring IIS to Provide E-Mail Support Tasks Detailed steps a In Outlook Express, on the Tools menu, click Accounts b In the Internet Accounts dialog box, click the newly created e-mail account, and then click Properties c On the Servers tab, under Outgoing Mail Server, select the My server requires authentication check box d Click Settings e In the Outgoing Mail Server dialog box, select the Log on using check box, and then, in the Account name box and the Password box, enter the Administrator account name and password, respectively f Modify the properties of the e-mail account to specify a user account with which to connect 43 Click OK twice, and then click Close Note: You not have a POP3 e-mail server installed on your server Outlook Express requires you to supply a name for the POP3 server while creating the e-mail account Because a POP3 server does not exist, you will receive an error message each time Outlook Express uses this e-mail account to check for new e-mail messages This is normal, and the error messages may be ignored b In the To box, enter your new e-mail account information (for example, jane@vancouver.nwtraders.msft) Type a subject in the subject line and a message in the main window On the toolbar, click Send a In Windows Explorer, in the left pane, expand Local Disk (D), expand Intepub, and then expand mailroot b Click the Drop folder c From the Drop folder, read the new e-mail message in Outlook Express In Outlook Express, on the toolbar, click New Mail d Send a message to yourself by using Outlook Express a c In the right pane, double-click the latest e-mail message The message opens in Outlook Express According to Outlook Express, who sent the message? Outlook Express shows your full name (or the name you entered when creating the new e-mail account) in the From field (continued) d Close the message Open the same message in Notepad a In Windows Explorer, right-click the new e-mail message, and then click Open With b From the Open With window, click Notepad, clear the Always use this program to open these files check box, and then click OK 44 Module 7: Configuring IIS to Provide E-Mail Support Tasks Detailed steps Notepad opens the file and allows you to view the complete header information for the message In the header information, who is the x-sender? Why does it say this? The x-sender is user_name@contoso.msft The SMTP server masqueraded the true domain name, replacing it with contoso.msft What does the From line report? Why is this different from the x-sender line information? The From line reports the user name and domain information from the Outlook Express mail account setup Unlike the x-sender information, the From line is not masqueraded How can you make the From and x-sender information the same? In Outlook Express, change the e-mail account properties by changing your name and e-mail address This information is not verified by the SMTP server and appears in the From line in the header If you make both the From and x-sender lines report a fictitious domain name, is the true message origin completely hidden? Why or why not? No, the true message origin is not completely hidden The header information still reports the actual name of the server from which the message was received This information is in the received line of the header (continued) c Close all windows and log off Module 7: Configuring IIS to Provide E-Mail Support 45 Review Topic Objective To reinforce module objectives by reviewing key points Lead-in The review questions cover some of the key concepts taught in the module Introduction to the SMTP Service Configuring Support for the SMTP Service Controlling E-Mail Messages Configuring Security for the SMTP Service Managing the SMTP Service *****************************ILLEGAL FOR NON-TRAINER USE****************************** By default, which TCP port is used for SMTP activity? TCP Port 25 How does the SMTP service determine which remote server to send a message to? The service performs a DNS reverse lookup to find the MX record for the e-mail domain name If you are concerned about disk space on your server, which folders should you monitor closely? The SMTP virtual server’s Badmail and Drop folders You have several SMTP servers throughout your company Only one of these servers is directly connected to the Internet Which delivery option will allow all of your servers to send e-mail messages to the Internet? The smart host delivery option 46 Module 7: Configuring IIS to Provide E-Mail Support What security problem can you prevent by controlling relay access? Controlling relay access prevents unauthorized users from routing messages through your server You suspect that your server is being used to relay unsolicited commercial e-mail messages What should you to determine what traffic is passing through your server? Enable logging and review the logs ... owners Module 7: Configuring IIS to Provide E-Mail Support iii Instructor Notes Presentation: 45 Minutes This module provides students with the knowledge and skills to provide e-mail support. .. authentication No other modules in this course are affected by this change Module 7: Configuring IIS to Provide E-Mail Support Overview Topic Objective To provide an overview of the module topics and objectives... materials for this module Complete the labs iv Module 7: Configuring IIS to Provide E-Mail Support Module Strategy Use the following strategy to present this module: Introduction to the SMTP Service