This policy setting controls whether Outlook blocks potentially dangerous attachments designated Level 1. Outlook uses two ...

This policy setting controls whether Outlook blocks potentially dangerous attachments designated Level 1. Outlook uses two levels of security to restrict users' access to files attached to e-mail messages or other items. Files with specific extensions can be categorized as Level 1 (users cannot view the file) or Level 2 (users can open the file after saving it to disk). Users can freely open files of types that are not categorized as Level 1 or Level 2.  If you enable this policy setting, Outlook users can gain access to Level 1 file type attachments by first saving the attachments to disk and then opening them, as with Level 2 attachments. If you disable this policy setting, Level 1 attachments do not display under any circumstances. If you do not configure this policy setting, Outlook completely blocks access to Level 1 files, and requires users to save Level 2 files to disk before opening them.

This policy setting controls whether Outlook automatically displays the meeting time and location in the meeting request ... This policy setting controls whether Outlook automatically downloads content from safe zones when displaying messages. If ... This policy setting controls whether Outlook automatically downloads external content in e-mail from senders in the Safe ... This policy setting controls whether Outlook automatically makes an offline copy of the RSS items as HTML attachments.If ... This policy setting controls whether Outlook blocks potentially dangerous attachments designated Level 1. Outlook uses two ... This policy setting controls whether Outlook can automatically upload calendar updates to Office.com. If you enable this ... This policy setting controls whether Outlook considers a missing certificate revocation list (CRL) a warning or an error. ... This policy setting controls whether Outlook creates a new OST file when you upgrade to Outlook 2013. The new OST file uses ... This policy setting controls whether Outlook decodes encrypted messages itself or passes them to an external program for ...