IronPort - Configuration Guide - AsyncOS 7.6.1

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THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. CCDE, CCENT, CCSI, Cisco Eos, Cisco HealthPresence, Cisco IronPort, the Cisco logo, Cisco Nurse Connect, Cisco Pulse, Cisco SensorBase, Cisco StackPower, Cisco StadiumVision, Cisco TelePresence, Cisco Unified Computing System, Cisco WebEx, DCE, Flip Channels, Flip for Good, Flip Mino, Flipshare (Design), Flip Ultra, Flip Video, Flip Video (Design), Instant Broadband, and Welcome to the Human Network are trademarks; Changing the Way We Work, Live, Play, and Learn, Cisco Capital, Cisco Capital (Design), Cisco:Financed (Stylized), Cisco Store, Flip Gift Card, and One Million Acts of Green are service marks; and Access Registrar, Aironet, AllTouch, AsyncOS, Bringing the Meeting To You, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, CCVP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Lumin, Cisco Nexus, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Collaboration Without Limitation, Continuum, EtherFast, EtherSwitch, Event Center, Explorer, Follow Me Browsing, GainMaker, iLYNX, IOS, iPhone, IronPort, the IronPort logo, Laser Link, LightStream, Linksys, MeetingPlace, MeetingPlace Chime Sound, MGX, Networkers, Networking Academy, PCNow, PIX, PowerKEY, PowerPanels, PowerTV, PowerTV (Design), PowerVu, Prisma, ProConnect, ROSA, SenderBase, SMARTnet, Spectrum Expert, StackWise, WebEx, and the WebEx logo are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries. All other trademarks mentioned in this document or website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0910R) Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental. Cisco IronPort AsyncOS 7.6 for Email Configuration Guide © 2011 Cisco Systems, Inc. All rights reserved.
OL-25136-01 iii CONTENTS CHAPTER 1 Getting Started with the Cisco IronPort Email Security Appliance 1-1 CHAPTER 2 Overview 2-1 What’s New in This Release 1-1 New Feature: IPv6 Support 1-1 New Feature: RSA Enterprise Manager Integration 1-2 Enhancement: DLP Message Actions 1-2 Enhancement: DLP Message Tracking Privileges By User Group 1-2 Enhancement: RSA Email DLP’s “Quarantine a Copy and Deliver” Option 1-3 Enhancement: SenderBase Reputation Service Requires an Anti-Spam Feature Key 1-3 New Feature: DKIM Verification Profiles 1-3 Enhancement: New Tags for DKIM Signing Profiles 1-3 New Feature: DKIM Signing of System-Generated Messages 1-3 Enhancement: Skip DKIM Signing Action 1-4 Enhancement: Rate Limiting and Enforced TLS for Envelope Senders in Mail Flow Policies 1-4 Enhancement: Separate Update Servers for AsyncOS Upgrades and Other Service Updates 1-4 Enhanced: Web User Interface Protection 1-4 The Email Security Appliance Documentation Set 1-5 How to Use This Guide 1-5 Before You Begin 1-6 How This Book Is Organized 1-6 Topics Discussed in the Cisco IronPort AsyncOS for Email Advanced Configuration Guide 1-7 The following topics are discussed in the Cisco IronPort AsyncOS for Email Daily Management Guide 1-8 Typographic Conventions 1-9 Where to Find More Information 1-9 Third Party Contributors 1-11 Cisco IronPort Welcomes Your Comments 1-11 Cisco IronPort Email Security Appliance Overview 1-11 Mail Flow and the Cisco IronPort M-Series Appliance 1-13 Web-based Graphical User Interface (GUI) 2-1 Viewing Active Sessions 2-5 Cisco IronPort AsyncOS 7.6 for Email Configuration Guide iii
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Chapter 9 Anti-Spam Cisco IronPort
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IP Interfaces OL-25136-01 Accessing
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Appendix A Accessing the Appliance
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Ethernet Interfaces OL-25136-01 APP
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Appendix B Assigning Network and IP
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OL-25136-01 Firewall Information AP
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OL-25136-01 APPENDIXD Cisco IronPor
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Appendix D Cisco IronPort End User
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A OL-25136-01 GLOSSARY Allowed Host
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DoS attack Denial of Service attack
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MTA Mail Transfer Agent, or Messagi
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Spam Unwanted, Unsolicited Commerci
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Symbols $ACCEPTED mail flow policy
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D data loss prevention see DLP defa
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history, in CLI 2-8 Host Access Tab
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netmasks, selecting B-1 network acc
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secure copy A-6 selecting a notific
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weekly status updates 3-36 weight o
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IronPort - Configuration Guide - AsyncOS 7.6.1

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