Using MFCMAPI to delete the hidden forward to delegates rule


When a meeting invite gets a NDR #4.4.7 or #5.1.7 (examples below) from a seemingly random person, it is most likely that the person was once a delegate of one of your requested meeting attendees but his/her mailbox has since been deleted.

——————–

From: System Administrator
Sent: Thursday, June 14, 2012 11:16 AM
To: MACH Exchange Admins
Subject: Undeliverable: MACH Roundtable — UPDATE

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

      Subject: MACH Roundtable — UPDATE
      Sent: 6/12/2012 10:43 AM

The following recipient(s) cannot be reached:

      Huynh, Matthew on 6/14/2012 11:16 AM
            Could not deliver the message in the time limit specified. Please retry or contact your administrator.
            <EXSERVER.DOMAIN.COM #4.4.7>

——————–

From: System Administrator
Sent: Thursday, June 14, 2012 11:16 AM
To: MACH Exchange Admins
Subject: Undeliverable: MACH Roundtable — UPDATE

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

      Subject: MACH Roundtable — UPDATE
      Sent: 6/12/2012 10:43 AM

The following recipient(s) cannot be reached:

      Huynh, Matthew on 6/14/2012 11:16 AM
            The e-mail address could not be found. Perhaps the recipient moved to a different e-mail organization, or there was a mistake in the address. Check the address and try again.
            <EXSERVER.DOMAIN.COM #5.1.7>

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Once you identify which user had the delegate, have the user clear their delegate list, restart Outlook, and re-create it.

If that doesn’t work, you can use these steps to delete the hidden forward to delegates rule inside the user’s mailbox:

1. Start MFCMAPI on a computer that has Outlook (or MAPI CDO) installed.

2. Go to Session -> Logon… and choose/create the MAPI profile that contains the mailbox with the delegate rule you wish to delete. You can log on with the mailbox credentials or administrator credentials that has full mailbox access to the mailbox.

3. Go to QuickStart and select Open Rules.

4. Find the rule whose PR_RULE_PROVIDER is SCHEDULE+ EMS Interface and delete it.

5. Have the user clear their delegate list, restart Outlook, and then add in their delegates again.

Note: MFCMAPI is an advanced troubleshooting tool to be used by IT administrators. Microsoft is not responsible for any damage incurred by misuse of the tool.

Comments (1)

  1. Anonymous says:

    I wrote a script a while ago that can remove invalid delegates from a mailbox using a mixture of EWS

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