OUTLOOK EXPRESS - Logon using secure password authentication

Posted on 2004-11-22
Last Modified: 2012-05-05
Outlook Express 6
Exchange 5.5
Windows NT/Windows2000

I noticed the following today.

If you logon to the domain as userA, open outlook express, create a new profile/account  with a username of USERB and USERB's password.... and under the server section seelct "Logon using secure password authentication" as well as "My server requires authentication"

Then even if your profile was for USERB, userA's email is downloaded into the mailbox.

If you remove the check box from " Logon using secure password authentication" then everthing works as it should, with USERB receiving USERB's email.

If this how it is suppose to work?

it seems like asecurity issue to me.
Question by:Christian_Agard
    1 Comment
    LVL 1

    Accepted Solution

    I think that is how it's supposed to work.

    I found some info here:

    "When a user tries to log on to Exchange Server with Outlook Express and
    Secure Password Authentication, the client will pass the credentials of the
    user logged on to the workstation. If the logon works using the Clear Text
    option: <NT Domain/NT Account/Alias>, the user will have to change his or
    her mailbox alias to the Windows NT account name in order to use Secure
    Password Authentication. This is because Secure Password Authentication will
    not pass the mailbox alias information. It defaults to <NT DOMAIN\NTACCOUNT>
    and Exchange Server assumes the alias to be the Windows NT account."

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