[EXIM] Filter Frustration

I am trying to filter on the message-id header and it does not seem to be
working. I have created a simple test message with a

Message-Id: 0.AO@???

The filter should be very simple:

if $message_id contains 0\\.A0 then save /dev/null
endif

But when I test the filter, it reports that the test returns false.

What am I doing wrong?



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