Handler is an executable file which is invoked at selected points (called hooking points).
Mail handlers are used to handle incoming, outgoing, and pass-through mail at various stages of processing by the Mail Transfer Agent (MTA). One or more handlers can be applied to a message.
Leave your comments on this page
Leave your feedback or question on this documentation topic below. For technical assistance, contact your hosting service provider or submit a request to Plesk support. Suggest new features for Plesk here. Discuss general questions on the Plesk forum. All offtopic comments will be removed.