Gmail not recognizing spam that is forwarded

[Wade Preston Shearer]

For those that have managed a mailing list before, you will understand that deluge of spam that is sent to <list name>-owner and <list name>- admin. I do not have my own spam filtering running on my server because Google's is exceptional and it's a battle I would rather let them fight for me. Within Mailman's settings, I have the admin and owner email address set as a Google Apps For My Domain address. Strangely, none of the spam that is forwarded from my server to this GAFMD address is recognized as spam. And because Google's spam filtering is so good (I experience a nearly 100% accuracy rate for other addresses) and the amount of spam that gets through is so bad, it appears to me that Google is simply not scanning these messages. Is anyone else experiencing this (Google seeming to not scan messages forwarded to a Google mail account) or have any ideas on how to instruct Google to scan them?

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