How do I keep Outlook from launching except with a password.

I have a client that said this was working before but unable to find how. She doesn't want Outlook to launch at all with out a password. Currently it asks for a password but even if you don't enter a password you still can browse through all her emails. She doesn't want this to happen.
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Valentina PerezExchange ServersCommented:

Outlook is domain joined?

The mailbox is hosted in Exchange, Office 365?

Brian BEE Topic Advisor, Independant Technology ProfessionalCommented:
Is her mail stored on a PST or on the server (OST)? If mail is on the server, recreate the profile and when prompted for a password, don't check the box to remember it. If her mail is stored on the local computer, you can encrypt the PST.

Bigger question to ask is why is this a concern? The first step to stop unauthorized use is to lock her computer when she is not there. If someone else need to use the computer, maybe there is a better way to do it with a separate account?
compu1Author Commented:
I know my exact words. But she has sometimes other logging in on the PC and doesn't want them to open Outlook. I would say if there is no real solution that if they need this create different profiles. My security thinking is everyone should have their own login.
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Tom CieslikIT EngineerCommented:
It is impossible since PST and OST file outlook oppening prior to ask for password.
You can enable PROMPT FOR PASSWORD and Outlook will ask for password every time someone will try to open it but if you ignore prompt, then you'll have access to old emails.

All you can do in network environment with Exchange connection, is to disable Cashed Mode, then delete OST file from disk.
Next time if someone will try to open Outlook without password he will see nothing.
Jackie ManCommented:

The only ways to protect the mail profile are:

  1. Password protect Windows.
  2. Lock your computer or log off when you are away (the keyboard shortcut to lock your computer is: Windows Logo Key + L).
  3. Encrypt your entire disk via BitLocker or a 3rd party tool.

Jackie ManCommented:
-My security thinking is everyone should have their own login."


Anyway, assuming most computers will be graded to Windows 10 very soon, you can setup dynamic lock for the computer with the mail profile so that Dynamic Lock can automatically lock your PC when your Bluetooth phone goes out of range.
Brian BEE Topic Advisor, Independant Technology ProfessionalCommented:
Some good ideas there. I've seen a question like your before. The issue is the same here... Bottom line is they are trying to use Windows in a way that it was not designed to handle. The whole point is each user should have their own sign-on.

Just to throw another idea out there though, I suppose the email user could use the webmail interface instead of Outlook. Not ideal, but that will definitely prompt for password (if they don't save it) and will not store anything on the computer.

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