XFOR: MAPI Embedded Message may NDR Due to Invalid Recipient

SYMPTOMS

If you create a message to an Internet recipient without doing a Check Names on that recipient, and embed that message into a second message to an Internet recipient, the message may fail with the following non-delivery report (NDR):

   Your message did not reach some or all of the intended recipients.

         Subject:Unknown
         Sent:10/11/98 10:57:28 AM

   The following recipient(s) could not be reached:

         'user@microsoft.com' on 10/11/96 10:58:39 AM
               A syntax error was detected in the content of the message
               MSEXCH:IMC:Microsoft:ORG:SITE