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Exchange multiple usernames accepted?

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  • Exchange multiple usernames accepted?

    It seems like Exchange will accept numerous different things as a username for authentication;

    -the full user logon name set in EAC with user logon name and domain suffix

    -pre-2000 username which can be controlled in AD

    -and last which makes no sense to me, is some hidden field that is driving me nuts trying to figure out

    So, I started out with full name "Test User", logon name [email protected]. I am able to login to the OWA using either "TUser" or "[email protected]". So I within EAC I changed the user logon name to [email protected]. I also changed the pre-2000 name to userA2000. Lastly I changed the alias within EAC (I still don't understand this field as it doesn't seem to affect anything) to user123.

    So I can now log in using;
    [email protected] (full user logon name with domain suffix from within EAC)
    -userA2000 (pre-2000 logon from with AD)
    -TUser (original name that is not reflected in any field I can find in EAC or AD now)

    Any ideas as to what in the world is happening? I've tried modifying the name within AD, aliases, everything. I don't see anywhere there is ANYTHING with TUser still listed.

  • #2
    Re: Exchange multiple usernames accepted?

    go and look at the actual AD Properties of the object using DSA.
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    • #3
      Re: Exchange multiple usernames accepted?

      Originally posted by tehcamel View Post
      go and look at the actual AD Properties of the object using DSA.
      That's where I changed the pre2000 name. Nowhere in any of the tabs of the properties does it list TUser. But this is still a valid login. If I'm not mistaken there should only be two different login names, the user logon name using the domain suffix, and the pre2000 name, correct? I can login using those 2 plus the 3rd option.

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      • #4
        Re: Exchange multiple usernames accepted?

        I don't really have a live system to mess around with. Is it still demonstrating the same symptoms ?

        Exchange does cache details, so it may have been cached.
        Please do show your appreciation to those who assist you by leaving Rep Point https://www.petri.com/forums/core/im.../icon_beer.gif

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