Thursday, July 25, 2013

Fixing the Outlook Address Cache / Autofill after recreating email address in Exchange

Recently I had a scenario where we wanted to convert a distribution group to a user mailbox. This was an email address that everyone uses. Of course this can't be done without deleting the dist group and creating as a user mailbox. Unfortunately when you delete the distribution group and recreate as a user the Outlook autocomplete / autofill will break because the value that outlook looks at is different for the new object.

This will result in a NDR like the following: (for dist group

Delivery has failed to these recipients or groups:
'Test' <>
The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message. If the problem continues, please contact your helpdesk.

Diagnostic information for administrators:
Generating server:
#550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##

As Ben points out this can easily be fixed:

This helps keep our 200+ users from having to fix on their own or more likely calling the help desk to have us fix it

And to help convert the IMCEAEX string

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