Auto target groups can be created manually or are created automatically when you create a newsletter or a block list.

An auto-target group is always up to date and therefore constantly changes in size due to:

* the subscriptions and unsubscriptions within a newsletter * the nightly cleanup of negative list entries and hard bounces * registrations generated via an address interface * automatic imports (via an interface to an external CRM system or an automated import of addresses that were made available via SFTP) * an upload of addresses to the SFTP server * adding target groups or filtered addresses to an auto-target group * manual cleanup * automatic calculations that can be set up by promio.net

Static target groups are target groups that, unlike auto-target groups, are not automatically cleaned up. Static target groups can be created by the following actions:

* Imports * Copying target groups * Creating reactant target groups * Saving a filtered copy * Splitting * Matching with another client