Startup: MAILHARDENER
Location: Netherland
Pain Point It Solves: a service that allows you to monitor email for your domain(s) from the receiver’s perspective. It allows you to see which computers are sending email using your domain(s) in the sender or return addresses. It also shows you which server received these emails, & how these emails were processed by the receiver (accepted, rejected or marked as spam).
Free + Paid
Image Credit: MAILHARDENER