On Tue, 22 Oct 2013 08:08:01 +0200 Webmaster DKDB wrote: > Hi Guys > I'm using spamassassin to make sure that my newsletter is formatted > properly when sent out, the only error I get is a message like this: > > RDNS_NONE and the explanation is Delivered to internal network by a > host with no rDNS
It means that that the MX server didn't record the reverse dns of the host from which it received the mail. This can be because: - it really doesn't have rdns - the MX server never records rds in the received header - the internal networks isn't setup correctly so spamassassin is looking at the wrong header
