This feature would be quite similar to the current "Notification" Action Object, but rather than sending an email notification, it would construct an HTTPS request using the same set of variables available in the email notification __ADMIN__, __SUBJECT__, __SENDER__, __RECEIVERS__, __TARGETS__, __RULE__, __RULE_INFO__, __VIRUS_INFO__, and __SPAM_INFO__ (and any others I have missed). Whenever this object is triggered during the rule processing of the mail filter, the constructed request would be sent via POST to a URL that is configurable in the Webhook Action object.
This would allow modern push notification of triggered events and integration into other systems and automation.
This would allow modern push notification of triggered events and integration into other systems and automation.