As a result, I lowered the scores for HELO_DYNAMIC_HCC and HELO_DYNAMIC_IPADDR.
I also forced bayes to relearn the email as ham, etc. The other
problem is that the sender of the message informed me that it is not a
dynamically assigned address. It is an ADSL connection from the
Netherlands with a fixed IP address.
Well, the HELO_DYNAMIC_HCC is just picking up on the RDNS name containing "adsl", nothing more.
The HELO_DYNAMIC_IPADDR is picking up on the fact that the RDNS hostname is just
If the IP is a truly fixed, and truly intended for having a mailserver running on it by the ISP, the ISP should be able to provide custom RDNS mappings. I'd suggest that user request a mapping which matches the MX entries for that server, or at least the same domain.