my MUA missed the CC recipient ---------- Forwarded message ---------- Date: Wed, 15 Jan 2014 16:49:32 From: R P Herrold <herrold(a)owlriver.com&gt; To: Itamar Heim <iheim(a)redhat.com&gt; Cc: Dave Neary <dneary(a)redhat.com&gt; Subject: Re: ipv6 PTR record; was: Re: Fwd: Bounce action notification On Wed, 15 Jan 2014, Itamar Heim wrote: I am not aware of any resolution to the matter crossing the mailing lists DNS says: no [herrold@centos-6 ~]$ host 2600:3c01::f03c:91ff:fe93:4b0d Host \ d.0.b.4.3.9.e.f.f.f.1.9.c.3.0.f.0.0.0.0.0.0.0.0.1.0.c.3.0.0.6.2.ip6.arpa not found: 3(NXDOMAIN) [herrold@centos-6 ~]$ date Wed Jan 15 16:48:58 EST 2014 with best regards, -- Russ herrold