Easy to use topic-based CMS with metadata information via check-in comments. Many of the features and tags are very intuitive and one can understand them right off the bat.

The basic functionality of an email gateway is all there, and it's relatively easy to use. The price that this solution comes in at is very reasonable, especially for it's capabilities.

There isn't much to configure or maintain with Securence once you get it integrated into your environment. It does a good job of alerting users to blocked or quarantined emails. I particularly enjoyed its ability to cache emails if the connection to our on-prem exchange server went down. Inspecting messages at the edge in their mail log is also quite easy to do, far better than jumping through the hoops required in O365.