Converting User account to Dist group, users can no longer email address localy RRS feed

  • Question

  • We have a company of several thousand users all using office 2010

    We had a user called "sales desk" We removed the email address from the mailbox and made it a dist group. 

    Anyone emailing from outside the domain has no issues. Anyone inside the network gets a "Mailbox not found" bounceback

    Without going to every single machine and removing the chached email address and forcing everyone to retype the address by hand, and without canging the address back to a user account and mailbox.....

    How can we get the internal users emails to get to the dist group when emailing the salesdesk email?

    Tuesday, June 14, 2016 4:29 PM


All replies

  • Hi,

    are the users' Outlook sessions in cache mode? In this case, you could try the following:

    • force OAB generation
    • initiate a complete OAB download manually on one client

    I f this helps, you can resort to the procedure listed in for a week and remove the registry setting afterwards. You can do this by GPP (not sure if this setting made it into the Office ADMX).

    Evgenij Smirnov

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    Tuesday, June 14, 2016 4:44 PM
  • Take help of this article and add an x.500 address on newly created Distribution group. This will solve the problem.

    Regards, Sourabh Kumar Jha | Please mark it as an answer if it solves your problem or vote as helpful if you like it. |

    Tuesday, June 14, 2016 6:46 PM
  • This problem is probably occurring due to either the Autocomplete cache in outlook or offline address books that have not been updated yet.

    If it's only a few users, you can instruct them to remove the entry from the autocomplete cache. Then have them send again by selecting from the All Groups address list which is usually not in the OAB. If that works, then you have confirmed the issue.

    If there are a large number of internal users then you should add the x500 address from the old mailbox to the new distribution group. That will allow the cached entry in Outlook to work properly. The link provided by Sourabh has that information.

    Byron Wright (

    Tuesday, June 14, 2016 7:27 PM
  • please force to update offline address book .

    Continuous plan Do review is key to success.
    Please mark as answer \Helpful if its . My Linkedin Profile

    Tuesday, June 14, 2016 8:49 PM