On Mon, 12 Apr 2010, Professional Software Engineering wrote:
This is the symptom of an 'encoding' mechanism, such as 'quoted printable'
being used on the headers. The program you use to read or forward the mail
is 'decoding' the header, so you only see the plain text.
On an ENVELOPE SENDER line (From ) ? I know it happens all the time with
other header fields, such as From:, To:, and Subject:, but I can't say that
I've ever noted an instance of it with the From_
There is no guarantee that the sender's envelope is actually the same as
the "From:" header. And there isn't even any guarantee that the envelope
sender is a 'From' line. On my postfix it is 'Return-Path'....
So in my experience (YYMV) any time a simple rule fails to trigger
when the text 'obviously' matches, it is the fault of encoding like QP.
The OP says the mail 'fell through' to his inbox. so that pretty much
eliminates the chance of a match on another rule earlier in the list
(which would likely have been revealed through the secondary testing).
- C
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