Guest Post: Neil Anuskiewicz In Dante’s Inferno, the poet Virgil guides Dante through the nine circles of hell and purgatory, enabling Dante to learn the lessons he needs to get to Paradiso. Similarly, in Deliverability Inferno, Chris Arrendale, guides the reader on a journey through the nine challenges of email deliverability enabling the reader to learn the lessons needed to get to Paradise (aka the Inbox). As I read the table of contents, I was immediately struck by the holistic alignment of permission-based email marketing best practices and email deliverability best practices. This hasn’t always...