Address Rewrite Tool |
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By Scott Schnoll
19 Apr 2004 | SearchExchange.com |
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The following is Tip #14 from "25 Exchange 2003 Tips in 25 minutes." This content is
excerpted from Scott Schnoll's book, "Microsoft Exchange Server 2003 Distilled," brought to
you by © (2004)
Pearson Education, Inc. Publishing as Addison-Wesley
Professional. Return to the main page for
more tips on this topic.
The Address Rewrite tool, EXARCFG.EXE, is a tool you can use to rewrite P2 addresses on
messages sent into Exchange from foreign messaging systems that are destined for and
external or Internet address. P2 addresses, as defined in RFC 822, include the FROM, REPLY
TO, and SENDER fields for a message. EXARCFG.EXE is very similar to the RerouteVia Store
registry entry used in Exchange 5.0 and Exchange 5.5 to reroute all SMTP messages through
the Exchange information store. It pushes the message into the information store,
invalidates all existing MIME information, and forces a conversion of the message from MIME
to MAPI. Converting from MIME to MAPI causes the address to be rewritten as configured. Once
the rewrite is complete, the message is rerendered and sent off to its destination.
Before using this tool, you should understand its effects on your messages. First, all
messages submitted via external SMTP will undergo the content conversion process, even if
addresses do not need to be rewritten. Second, unless you route all of your internal
messages through external SMTP servers, you cannot use this tool to rewrite internal
addresses. EXARCFG.EXE is implemented as a command-line tool; Table 10.2 presents the
command-line switches.
For more information on using the Address Rewrite tool, including details on how to also
enable it by configuring an attribute in Active Directory, see the Read Me included with
this tool.
Get more "25 Exchange 2003 Tips in 25 minutes." Return to the main
page.
About the author: Scott Schnoll, an Expert on SearchExchange.com, is an MCT,
MCSA and a long-time Microsoft Most Valuable Professional (MVP).
In addition to writing "Microsoft Exchange Server 2003 Distilled," he is a co-author of the
upcoming "Exchange 2003 Resource Kit from Microsoft Press" and lead author for "Exchange
2000 Server: The Complete Reference."
Scott has written numerous articles for Exchange & Outlook Magazine, and is a regular
speaker at Microsoft conferences, including MEC and TechEd, as well as industry conferences
such as Comdex and MCP TechMentor, where he covers topics such as Exchange, clustering,
Internet Information Services and security.
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