Hello ! Roundcube has no plugin to allow the management of maildrop filters. The only plugin I found is the one that comes with ISPConfig. I am maintaining an old mail server with ISPConfig installed and ispconfig_filter and would like to know if there's a standalone version of that plugin that could work without the whole ispconfig installation ?
I guess you mix up a few things here. ispconfig does not ship with a roundcube plugin and never did. There is a roundcube plugin available at github to use with a ispconfig server though: https://github.com/w2c/ispconfig3_roundcube This plugin uses the ispconfig api, so if you refer to this third part plugin, then this cant be used without ispconfig being installed on the target mail server.
