> RDNS_NONE is defined by the following rules:
> 
> meta RDNS_NONE      (__RDNS_NONE && !__CGATE_RCVD)
> header __RDNS_NONE    X-Spam-Relays-Untrusted =~ /^[^\]]+ rdns= /
> header __CGATE_RCVD       Received =~ /by \S+ \(CommuniGate Pro/

OK, I'm going to have one more go. The RDNS_NONE rule is triggered by
the __RDNS_NONE rule above which is a regular expression. The header you
posted didn't match this rule so it's quite possible it has nothing to
do with the RDNS_NONE rule being triggered whatsoever.

Please post the full message headers.

Francis

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