Zabbix - Track, record, alert and visualize performance and availability of IT resources
MailStore - MailStore Home - A 100% free single-private-user desktop solution
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Hornetsecurity Email Archiving - Hornetsecurity Email Archiving is one of the advanced software that offers long-term, unchangeable, and secure storage of important company information, data, and flies.
Prometheus - An open-source systems monitoring and alerting toolkit.
Intradyn Email Archiver - Orca Email Archiver provides email archiving solution for local government and business.