plugin {
    antispam_backend = pipe
    antispam_spam    = Junk
    antispam_trash   = Trash
    antispam_mail_sendmail = /usr/bin/rspamc
    antispam_mail_spam     = learn_spam
    antispam_mail_notspam  = learn_ham
    antispam_mail_sendmail_args = -h;localhost:11334
}