[Bug 5143] New: False positives with HELO_DYNAMIC_IPADDR and HELO_DYNAMIC_DHCP

[bu...@bugzilla.spamassassin.org]

http://issues.apache.org/SpamAssassin/show_bug.cgi?id=5143

           Summary: False positives with HELO_DYNAMIC_IPADDR and
                    HELO_DYNAMIC_DHCP
           Product: Spamassassin
           Version: 3.1.5
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Rules
        AssignedTo: dev@spamassassin.apache.org
        ReportedBy: ugob@lubik.ca


Hi,

    A very large ISP in Canada, Videotron, hits this rule with the RDNS of their
new offering: Static IP addresses on cable modem.

RDNS:
Dynamic:

modemcable002.152-81-70.mc.videotron.ca.

Static:

modemcable014.58-70-69.static.videotron.ca

This should be fixed, as many Videotron clients purchase a static IP address to
have their own mail server.  This service also comes with all ports open
(dynamic has port 25 blocked in/out), so they are almost telling their clients
to deliver directly and not use a smarthost.

I know those who send e-mails should set their RDNS correctly, but we all know
that it is not done in most cases.  Also, a bad RDNS is managed by others rules
right?

I understand that it hits HELO_DYNAMIC_DHCP because it has "cable" in it, but I
don't understand why it hits HELO_DYNAMIC_IPADDR (I'm not a regex guru).



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