first create the label then create a filter with fedora-list@xxxxxxxxxx in the To field, i did it and works for me
Since some people's Email clients doing a Reply-to-All would set the Fedora list as a CC recipient, perhaps adding it as a CC field check would be helpful as well ... to catch messages like this.
Mozilla's Thunderbird has a filter called "To or CC", Outlook has one called "Recipient is", etc., your mileage may vary (I don't use gmail so don't know what its capabilities are)
-id
