https://issues.apache.org/SpamAssassin/show_bug.cgi?id=7082

            Bug ID: 7082
           Summary: possible loose check in URI_HEX
           Product: Spamassassin
           Version: 3.3.1
          Hardware: PC
                OS: Mac OS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Rules
          Assignee: [email protected]
          Reporter: [email protected]

I have certain emails from some automated reports we send that are flagging
messages that have a line like this in the body for URI_HEX:

96.57.230.174       ool-6039e6ae.static.optonline.net

Sep 15 12:58:39.259 [42617] dbg: rules: ran uri rule URI_HEX ======> got hit:
"http://ool-6039e6ae";

This is easily reproducible (and I see the behavior with 3.4.0 as well).

I realize that it's important to match these encoded URLs, as spammers often
use them, but is it possible to make the check a little tighter?

Also, the debug statement put 'http://' in front of it, even though in this
case, it's not specified as a URI in the actual email message.

May be somewhat related to
https://issues.apache.org/SpamAssassin/show_bug.cgi?id=5664

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