Using Internet Mail Service Extension

By ServerWatch Staff (Send Email)
Posted Sep 14, 2000


By Cherry A. Beado

First DYK ..... "Did you know that you can add text to your emails ? " 

You have probably noticed some texts constantly appearing in the body of the internet emails you receive. These texts appear either before the message body or after the message body. Cool is it not ?

You have probably noticed some texts constantly appearing in the body of the internet emails you receive. These texts appear either before the message body or after the message body. Cool is it not ? 
Think about having one's company's mission/vision statement in every email out of their own domain ?
Fascinating !  One can even use this as an advertising medium .... cheap and economical , 
our budget officer would definitely love that . ..

One uses the Internet Mail Service Extension to do all of these. The IMS Extension (Imsext.dll) is use 
to pre-process and post-process e-mail messages that travel through the Internet Mail Service. 
IMS Extension allows us to do the following: prepend and/or append text to the body of messages or
send a copy of the message to another recipient. Most companies used this to add disclaimer text in all outgoing internet mails.

Well , just follow these simple steps and you will have those texts on the bodies of your internet mails ...

Here are the steps to do use the IMS Extension: 

Prerequisite: Exchange server 5.5 / SP3 

Step 1: Download the disclaimer.zip . Search the Web for this file.

Step 2: Unzip the file and look for the IMSEXT.DLL .

Step 3: Save the IMSEXT.DLL to \exchsrvr\connect\msexcimc\bin. 
           
(Location of the Exchange server folder)

Step 4: Register the .dll file. 
           Go to Start|Run. Type regsrv32 \exchsrvr\connect\msexcimc\bin\imsext.dll

Step 5: Edit the registry. Please be careful in doing this .
           Go to Start|Run. Type regedt32. 
            
Open HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIMC
           Under Parameters, create a key called "Extension" with class "REG_SZ".
           Do not close the registry editor yet.

Step 6: Open notepad (text editor)  and type the text you wanted to include in the message body with
           the format "\par\par\b Message Body \par\par\b"

Step 7: Return to Registry editor. Under the Extension key, create a value name
           "OutboundPrepend" for text before the message body of the outbound mails, 
           and "OutboundAppend" for text after the message body of the outbound mails.

Step 8: Close the Registry editor

Step 9: Launch the Exchange Admin Tool. Open Internet Mail Service properties. Locate the
           Routing Tab and choose the option "Instead of the table, use this custom routing program"
           Click on browse and locate the imsext.dll.

Step 10: Restart the Internet Mail Service.

Step 11: Test by sending internet mail.

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