SmarterMail offers file storage for various platforms (local, OneDrive, Dropbox), but if you already use a different (custom) system for file storage is it possible to integrate that?
SmarterMail could create API call that we should implement with correct responses in the custom system.
This way the remote files could be shown in SmarterMail just like the cloud services?
Anyone with a custom system could implement the API at their site and only have to give in the base url that SmarterMail should call in the SmarterMail settings.