James,

Thank you very much for submitting your suggestions. Comments like these help us improve our product, and we highly appreciate them. My answers below are numbered according to your original questions.

1. This is already being done. Go to Tools/View logs and refer to Performance.log. This log will contain every message that takes more than 30 seconds to process. It also contains drilled-down numbers for every rule category.
2. Sure. I will pass this along.
3. Same as #2.
4. Go to Filter Management/Sender Policy Framework and uncheck Perform SPF before whitelisting. Although this option exists, we recommend leaving it on because this won't have any effect if the SPF is missing and will prevent forgeries.