Use the Deliver Now action to deliver email immediately. When this action takes effect, Hosted Email Security delivers the email without executing any more rules for the affected email.
By default, all rules are automatically ordered for security and execution efficiency. Administrators are relieved of determining the order of rule execution. The Deliver Now action bypasses the automatic order of execution so that Hosted Email Security can deliver the email immediately.
The Deliver now action is not recommended for use as the only action. If you choose Deliver now as the only action for spam, for example, all of that mail will simply be delivered to your recipients, as if there were no spam filter in place.
If you use Deliver now with a malware rule, ensure that you also have a Delete action for the malware rule. Only the Delete action takes higher priority than Deliver now and so would be processed before it (and then terminate the processing of that rule).
If you chose Deliver now as the only action for a malware rule, mail containing malware would leak through unblocked.