Here, we'll find a list of all installed add-ons that import mail messages for use in Concrete CMS. Importers look for incoming mail to the server, then do something with it, as defined by the importer.
One example is included-- an importer to handle notification of received private messages by email and enable users to generate new private message replies via email. Another example is found in the concrete Discussion Forums add-on, which collects replies to discussion threads and creates replies automatically.
For more information about how mail importers can extend concrete's email capabilities, see our documentation pages.