Article ID: 940051
Article Last Modified on 10/30/2007
APPLIES TO
- Microsoft Exchange Server 2007 Standard Edition
- Microsoft Exchange Server 2007 Enterprise Edition
SYMPTOMS
In Microsoft Exchange Server 2007, you send an e-mail message that has the Request a Delivery Receipt option enabled. When you do this, the recipient information in the body of the message incorrectly contains the character string "%40" in the address instead of the at sign (@).
Additionally, you may receive a delivery status notification (DSN) message that resembles the following DSN message:
Note In this example, the recipient address should be "user01@contoso.com."
CAUSE
This problem occurs if you change the settings of the Exchange Server 2007 transport server to send a DSN message in plain text format. When you do this, the transport server generates a plain text DSN message that treats the at sign (@) as an escape character. Therefore, the at sign is replaced by the character string "%40."
RESOLUTION
To resolve this problem, install Update Rollup 5 for Exchange 2007. For more information about Update Rollup 5 for Exchange 2007, click the following article number to view the article in the Microsoft Knowledge Base:
941421 Description of Update Rollup 5 for Exchange 2007
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
To send a DSN message in plain text format, run the following command in the Exchange Management Shell:
Set-TransportServer -Identity server name -InternalDsnSendHtml: $false
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
817903 New naming schema for Exchange Server software update packages
Keywords: kbqfe kbexpertiseinter KB940051
