this e-mail message cannot be delivered because the e-mail address is no longer valid

Posted on 2011-04-21
Last Modified: 2012-05-11
One of our users is getting the message "this e-mail message cannot be delivered to XXX because the e-mail address is no longer valid" .  I logged on to her computer, started addressing the e-mail and when the staff name came up I deleted it.  Then I used the address book to find the staff name.  After I selected it, the same message was display that it was no longer valid.  I sent a test email from my Outlook 2010 account to the same user and it worked fine.  
What would cause this form a single user.
Question by:jrsitman
    LVL 8

    Expert Comment

    Maybe the user has blocked the email address.. Try look in outlook..

    Author Comment

    nothing in her blocked senders.
    LVL 15

    Accepted Solution

    I'm not sure what you tried already, but see below:

    Link 1 - For the last post, it mentions updating the Global Address List. See here for more info on that.

    A user here mentioned resetting the username. See this Microsoft link for more details.

    Author Comment

    @greyknight17, your second link fixed it.


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