Disable gmail's spam filter when forwarding email? [closed]

The solution to this is not to use Gmail's "forward a copy of incoming mail" feature, but instead to create a filter. Filters are applied to incoming mail before spam detection takes place, giving the option to "never send to spam" in the filter rules. The forwarding filter should use Gmail's "deliveredto:" operator, which handles messages that use plus addressing and messages addressed to mailing lists.

In a nutshell:

• disable forwarding if you're already using that to redirect messages to your destination address
• create a filter with the following criterion and actions
  • Has the words deliveredto:[email protected]
  • Forward it to [email protected]
  • Never send it to spam

I have verified that this approach works.