https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6919
Bug ID: 6919
Summary: RDNS_DYNAMIC / HELO_DYNAMIC_IPADDR overshoot with
generic dedicated server hosting RDNS
Product: Spamassassin
Version: 3.3.1
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Rules
Assignee: [email protected]
Reporter: [email protected]
Classification: Unclassified
The rules
0.4 RDNS_DYNAMIC Delivered to internal network by host with
dynamic-looking rDNS
3.2 HELO_DYNAMIC_IPADDR Relay HELO'd using suspicious hostname (IP addr
1)
match on the generic RDNS that is issued by many hosting and colocation
providers, in this case the german company HostEurope:
Received: from ds80-237-211-109.dedicated.hosteurope.de
(ds80-237-211-109.dedicated.hosteurope.de [80.237.211.109])
The machine in question is a dedicated server with a fixed IP address and very
unlikely to have a DynIP.
This overshoot combined with the relatively high score is responsible for some
false positives on our setup.
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