Enable checkbox "don't download in pictures in encrypted or signed html email messages"

[daan24]

Hi all,

I've got a question from the company where I work to enable the setting "Don't download the pictures in encrypted or signed HTML email messages" with a GPO or registry key setting.
(Setting can be found under "Outlook options => Trust Center => Automatic download => last checkbox

After searching already for a while, I've not been able to get anything back from Google or the Social technet forum.

We would like to roll-out this setting enabled to all our users and also grey out the checkbox, so the user can't uncheck it themself.

Thanks in advance,
Daan

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