If enabled, users can release email messages from the processing queue. This article explains the release process and how to enable it.
User option to release emails
If the sandbox queue is longer than 5 minutes, Attachment Sandboxing sends users a stripped copy of their email, containing
- A notification about the wait time
- Copy of the email subject
- Copy of the email message body
- List of the email attachment names
If the option to release queued messages is enabled, the stripped email also contains a link that allows the user to release the email to deliver it immediately. Attachments will still be processed by the sandbox, but the user can have immediate access to their email.
How to enable or disable the release of messages
- Click Service Settings > Attachment Sandboxing
- Check or uncheck Allow users to release the Email, prior to the result from Sandbox
Email Security confirms your selection with a notification.
What happens when an email is released?
The link within the email message takes the user to a secure portal where the email is temporarily held.
In the above example, the message contains malicious content and therefore cannot be released (or even previewed).
There are a few outcomes, depending on
- Where the message sits in the sandbox queue (whether it has been processed)
- User permissions within Email Security
See the table below for details.
| Sandbox queue status | Portal options | Outcome |
| Email has not yet been analyzed Attachment result is unknown |
User can release the email | When released from the portal, Attachment Sandboxing sends user
The sandbox will still analyze any attachments that have been queued. |
| Email has been analyzed One or more attachments are Suspect |
Depends on Email Security user permissions. Some users may not have permission within Email Security to handle Suspect or Spam level messages. |
User is warned that some attachments are suspect in nature. Then, one of the following options is available
|
| Email has been analyzed One or more attachments are Malicious |
User can not release | User is warned that some attachments are malicious in nature. Email Security does not allow users/admins to release or view email that has been deemed Malicious/Virus. |
| Email has been analyzed All attachments have a result of No Risk Found |
None | Email has already been delivered to use This can occur if a user clicks the release link, but the email has been processed in the meantime. |