It is simple to navigate - gives you all the detail and reasons in one pane, simple remediation if needs be - it has become out goto when we have any query on email delivery. The %age score when searching, allows you to narrow down rapidly on the problem email. Good plain English reasons behind any isse. Review collected by and hosted on G2.com.

It uses Exchange Journaling in order to examine the email, post-facto to it's delivery. This means that payloads can be delivered and clicked before they are yanked from the mailbox. Also, leads to helpdesk tickets when people see notifications, but are then confused that they can't find the email. Review collected by and hosted on G2.com.