Skip to main content
My preferencesSign out
Proofpoint, Inc.

What is Attachment Defense Sandboxing?

Situation The Attachment Defense Sandboxing allows us to push email messages to a safe environment where we then check the attachment for any type of payload
Solution Description of what Attachment Sandboxing is and how it benefits you.

Why is sandboxing important

The Attachment Defense Sandboxing allows us to push email messages to a safe environment where we then check the attachment for any type of payload.

Types of Attachments

The Attachment Defense service only scans for certain types of attachments found on this KB: file types scanned by Attachment Defense.

If we deem an attachment as a threat in our sandboxing service, it will then stop the message in real time by quarantining the message as a virus. Customers with the sandboxing service enabled can stop threats in real time. 

Threats Found

If a threat is found in the sandbox environment, the definitions for Attachment Defense get updated so future recipients of the same attachment will stop it 

Attachment Defense Sandboxing is included these packages

  • Advanced
  • Pro

To enable Attachment Defense Sandboxing

  1. Under the Administration section, navigate to Account Management==> Features.
  2. Check Enable Attachment Defense Sandboxing.
  3. Click on Save.

clipboard_ed559b669ed4ac6d0bab992088d1e4f02.png

 

Attachment Defense Sandboxing

When enabled, Attachment Defense Sandboxing will send attachments that are not known to the Attachment reputation service to be Sandboxed to determine whether it is safe to deliver.

During this time, emails remain queued until either a decision is provided or we exceed the maximum wait time (15 minutes). Once a decision is reached the email is either delivered or blocked.

The vast majority of messages are processed and delivered within 2 minutes.

 

Mail delays 

Mail being scanned in the sandboxing process will be delayed and can be delayed up to 15 minutes

If a message is delayed more than 15 minutes please contact Essentials support.

 

 

Adding Exemptions / Safe-list Attachment Defense Sandboxing

  1. Under the Administration section, navigate to Account Management==> Malicious Content.
  2. Check Attachment Defense Sandboxing ==> Add Specific email address in the Safe Sender List text field
  3. Click on Save.

clipboard_ee1c718151d664a4f45c6cebd997ac631.png