* Wietse Venema: > You may want to configure "cleanup -v" in master.cf to log what > happens when it receives the Milter's DISCARD response.
Thank you for that. Based on the logs I am now convinced that the problems lie with either Rspamd or how I use Rspamd based on my interpretation of the docs (which are not as clear as I would wish). postfix/cleanup[3014]: 395EA48C128B: milter-discard: END-OF-MESSAGE from mailout12.t-online.de[194.25.134.22]: milter triggers DISCARD action; [...] So, Postfix does honor DISCARD, if the milter actually answers in this fashion. Problem is, I only managed to get Rspamd to do so by using a special config parameter: # /etc/rspamd/local.d/worker-proxy.inc discard_on_reject = true; If I now use the 'reject' action, Rspamd signals 'discard' instead. Unfortunately, this affects all rejections, which is not what I need, but it is clear that Postfix works as desired if I can somehow make Rspamd do what I need it to do. I hope the Rspamd mailing list will lead to a solution. My thanks to you and Viktor for helping me rule out Postfix as the source of my troubles. -Ralph
