Solving the Error “Cannot Add to the Server Junk E-mail Lists” Within Outlook 2007

My Problem:
A user running Outlook 2007 SP2 and connecting to Exchange 2007 on a SBS 2008 machine receives this rather long-winded error:

“Cannot add to the server Junk E-mail Lists, you are over the size allowed on the server. The Junk E-mail Filter on the server will be disabled until your Junk E-mail Lists have been reduced to the size allowed on the server.

Would you like to manage your Junk E-mail Lists now?”

My Solution:
Have the user clear most, if not all of the entries in the “Blocked Senders” list (or the Safe Senders and Safe Recipients list, but I suspect that those are less likely to be filled).

Apparently there is a collective limit of 1024 entries in the Blocked Senders, Safe Senders and Safe Recipients lists.

As witnessed by the previous article, the blocked senders list is virtually useless for stopping spam and should only be used for stubborn senders and mailing lists that don’t honor or have a unsubscribe feature. If that wasn’t enough, so says the wise Sembee of Exchange Server fame.

If the problem persists, attempt to clear the Junk Email folder’s offline items by right clicking on the Junk Email folder, selecting Properties and clicking “Clear Offline Items” on the General tab.

One Comment

  1. random_al

    March 28, 2011 at 5:09 pm

    This issue can pop up when using integration with the CRM software, clear the checkboxes under the safe senders tab to fix!


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