MarketingSherpa.com release the results from a study which looked at how effective email marketing and list hosting services are at getting their own html newsletters delivered to different ISPs and email providers. Watch out for red faces and quick rebuttals.
Later edit: Prophetic words indeed. The pigeons fought back, and Sherpa have withdrawn the original article pending clarification and more data. If you listen closely, you can hear the sound of feathers ruffling.
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