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

      Subject:             Update on Recent Events
      Sent:                 8/24/2007 10:37 PM

The following recipient(s) could not be reached:

      CN=lap_man_cheung,CN=Users,DC=pfb\0ADEL:8d0a653a-41fe-4323-b16b-898bd9e9247f,DC=corp,DC=asat,DC=com on 8/24/2007 10:38 PM
            The message could not be delivered because the recipient's destination email system is unknown or invalid. Please check the address and try again, or contact your system administrator to verify connectivity to the email system of the recipient.
            <asatexg01.hkg.corp.asat.com #5.1.2>

      CN=IWAM_ASATPFBDC1,OU=System User Account,DC=pfb\0ADEL:8d0a653a-41fe-4323-b16b-898bd9e9247f,DC=corp,DC=asat,DC=com on 8/24/2007 10:38 PM
            The message could not be delivered because the recipient's destination email system is unknown or invalid. Please check the address and try again, or contact your system administrator to verify connectivity to the email system of the recipient.
            <asatexg01.hkg.corp.asat.com #5.1.2>

      CN=IWAM_ASATPFBDC,OU=System User Account,DC=pfb\0ADEL:8d0a653a-41fe-4323-b16b-898bd9e9247f,DC=corp,DC=asat,DC=com on 8/24/2007 10:38 PM
            The message could not be delivered because the recipient's destination email system is unknown or invalid. Please check the address and try again, or contact your system administrator to verify connectivity to the email system of the recipient.
            <asatexg01.hkg.corp.asat.com #5.1.2>

      CN=IUSR_ASATPFBDC1,OU=System User Account,DC=pfb\0ADEL:8d0a653a-41fe-4323-b16b-898bd9e9247f,DC=corp,DC=asat,DC=com on 8/24/2007 10:38 PM
            The message could not be delivered because the recipient's destination email system is unknown or invalid. Please check the address and try again, or contact your system administrator to verify connectivity to the email system of the recipient.
            <asatexg01.hkg.corp.asat.com #5.1.2>

      CN=IUSR_ASATPFBDC,OU=System User Account,DC=pfb\0ADEL:8d0a653a-41fe-4323-b16b-898bd9e9247f,DC=corp,DC=asat,DC=com on 8/24/2007 10:38 PM
            The message could not be delivered because the recipient's destination email system is unknown or invalid. Please check the address and try again, or contact your system administrator to verify connectivity to the email system of the recipient.
            <asatexg01.hkg.corp.asat.com #5.1.2>


lap_man_cheung
IWAM_ASATPFBDC1
IWAM_ASATPFBDC
IUSR_ASATPFBDC1
IUSR_ASATPFBDC
这五个帐号。其中第一个是没问题的，其它的在通讯录里是没有的。这封退信是发到某个群组里出现的。我到该群组去检查也没发现异常，请问这是什么原因引起的？该如何解决？急，在线等。请知道的回复。多谢。