Admin Quarantine helps your organization prevent spam, minimize data loss, and protect confidential information. G Suite admins can set up and manage quarantine policies to divert emails that pose a risk before they’re sent or delivered. They can then review those emails and take appropriate action to protect their organization and its data.

In response to your feedback, we’re making it easier to see why emails have been quarantined directly in the Admin Quarantine interface. This information will make it quicker to review emails and easier to identify the right action. Admins will be able to see:

• The specific rule that was triggered to cause the email to enter Admin Quarantine 
• The matched content (when applicable). 

Users with the “Access Admin Quarantine” or “Access restricted quarantines" admin privileges will have access to this new information in the Admin Quarantine.

For more information, please visit the Help Center.

Launch Details
Release track:
Launching to both Rapid Release and Scheduled Release

Editions:
Available to all G Suite editions

Rollout pace: 
Full rollout (1–3 days for feature visibility)

Impact: 
Admins only

Action: 
Admin action suggested/FYI

More Information 
Help Center: Set up and manage email quarantines


Launch release calendar
Launch detail categories
Get these product update alerts by email
Subscribe to the RSS feed of these updates

Source: G Suite Updates Blog