problems with "very long filename" rule?

[Dan Hollis]

Why is this rule tripping?
filename.rules.conf:deny        .{150,}                 Very long filename, possible OE attack                  Very long filenames are good signs of attacks against Microsoft e-mail packages

Our users are getting reports like this:
Report: Very long filenames are good signs of attacks against Microsoft e-mail packages (Inbox%3Fnumber=5.jpg)

Surely it shouldnt be tripping on that file? It's not a long filename.

-Dan

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