Microsoft KB Archive/199051

= In Exchange, incoming SMTP messages are missing information in the To field, the From field, or the Subject field =

Article ID: 199051

Article Last Modified on 10/25/2007

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APPLIES TO


 * Microsoft Exchange Server 2003 Enterprise Edition
 * Microsoft Exchange Server 2003 Standard Edition
 * Microsoft Exchange 2000 Server Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 4.0 Standard Edition

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This article was previously published under Q199051



SYMPTOMS
Clients receiving messages from Internet users may report that the message fields To, From, and/or the Subject are not populated with information.



MORE INFORMATION
This behavior is possible if the sending mail product does not provide this information in the P2 (Body) of the message. This behavior can be reproduced in the following manner.

Note  represents carriage-return/line-feed or the use of the ENTER key.

telnet  25

helo

mail from: sender@example.microsoft.com

rcpt to: recipient@example.microsoft.com

data

.

For the To, From, and Subject fields to be populated, the sending mailer must populate that information in the data section. The behavior described in the "Symptoms" section does not break any RFC; however, it is not a recommended, preferred, nor appreciated behavior for a mail system to engage in.

Additional query words: XFOR

Keywords: kbprb KB199051

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