Your email might have been blacklisted at one time. You probably found that out when customers or suppliers told you that they weren’t receiving email they were expecting from you. It’s painful and can shutdown your business. Staying off blacklists is just one of the ways to guard your email deliverability. The other is DMARC. DMARC enables you to proactively obtain feedback about your email so that you know about how your recipients’ email systems perceive your email quality. From that information, you can determine how to improve your email quality before it becomes a blacklisting issue.