Releasing a held email to your inbox, can be accomplished in two ways.
Quarantine View
If you have identified an email from a good/known sender or recognize it and definitely want the email released simply click on the “Arrow” icon. (Green in this example)
Preview
If you have identified an email from a good/known sender or recognize it and definitely want the email released simply click on the “Arrow” icon. (Green in this example)
After clicking the release button, you will get a confirmation pop window. Click the close button or the “X” for the popup window (depends on browser) and in a moment the email will be delivered to your inbox.