Oct 9 12:29:12 jdc postfix/cleanup[3374]: 50CC118074A6F: milter-reject: END-OF-MESSAGE from lists2.luv.asn.au[202.158.218.239]: 5.7.1 rejected due to DKIM ADSP evaluation; from=<luv-main-bounces@lists.luv.asn.au> to=<jason@jasonjgw.net> proto=ESMTP helo=<tainted.luv.asn.au> Oct 11 10:23:02 jdc postfix/cleanup[19312]: 23E771805C2E5: milter-reject: END-OF-MESSAGE from lists2.luv.asn.au[202.158.218.239]: 5.7.1 rejected due to DKIM ADSP evaluation; from=<luv-talk-bounces@lists.luv.asn.au> to=<jason@jasonjgw.net> proto=ESMTP helo=<tainted.luv.asn.au> Oct 11 11:23:10 jdc postfix/cleanup[20280]: 49D9118046E51: milter-reject: END-OF-MESSAGE from lists2.luv.asn.au[202.158.218.239]: 5.7.1 rejected due to DKIM ADSP evaluation; from=<luv-talk-bounces@lists.luv.asn.au> to=<jason@jasonjgw.net> proto=ESMTP helo=<tainted.luv.asn.au> Oct 12 14:20:49 jdc postfix/cleanup[9322]: 96D1B180C50B5: milter-reject: END-OF-MESSAGE from lists2.luv.asn.au[202.158.218.239]: 5.7.1 rejected due to DKIM ADSP evaluation; from=<luv-talk-bounces@lists.luv.asn.au> to=<jason@jasonjgw.net> proto=ESMTP helo=<tainted.luv.asn.au> The only other error in the logs in these instances is "rejected per sender domain policy". I'm running OpenDKIM here and I haven't touched the configuration of OpenDKIM, Postfix, Bind (or anything else). The problem appears to be gone now anyway. It resulted in temporary suspension from luv-talk.