Maian Responder supports a few third party web hooks which can help keep your subscribers list up to date with valid emails. These are the
same as the bounce handler function, but instead of the system accessing a mailbox, the third party system sends a trigger to remove the
email address. To set up any web hook, follow the relevant instructions.
Reports will be emailed if the
bounce handler flags email notification is enabled.
Note that some of the services may have been updated since this documentation was prepared.