Why Content Is Still an Issue
Conventional wisdom says that a good sender reputation beats content as the best way to boost your deliverability. It also holds that the "report spam" button found in so many e-mail clients is the chief reputation-tarnisher.
While these ideas are true, content does still matter. What's different now: the "report spam" button also influences content filters.
So when your subscriber clicks the "report spam" button, not only does it launch a spam complaint that counts against your reputation, it also tells content filters what to do with your email message.