Return Path's recent research study found that 20% of email is not being delivered to the inbox despite reporting metrics that state the opposite. If 20% of your email goes undelivered, how much revenue are you losing? After looking at 131 ISPs in United States, Canada, United Kingdom, France, Germany and APAC territories, one thing is clear - Deliverability and rendering failures are an ongoing challenge for marketers. Find out the truth about email delivery for your country and how improving email deliverability can increase response rates. Learn which ISPs are the toughest to reach in your country. Plus we'll reveal the missing metric all marketers need to know in order to calculate true email ROI.