[Dovecot] Dovecot-Antispam 2.0 with SpamAssassin (sa-learn)

Hi,

has anyone figured out how to use the dovecot-antispam plugin with sa-learn? I need to pass the username (user@domain.tld) to sa-learn and --ham or --spam depending on the move. I was thinking of using the CRM14 option and replace the command and arguments but cannot find anything about the ability to pass the username. Any pointers would be welcome.

N.