|
It looks as Bill suggested that the message was delivered via bcc (the x-delivered-to header apparently is different from those in the To header). Maybe, you are missing a check of the x-delivered-to header in addition to To and Cc headers.
I also see that the message has a pretty big spam score of 6.2. I would look at the spam block in the sieve script to see what happens to messages with that spam score.
|