What are some alternatives?
When comparing ControlScan and Hornetsecurity, you can also consider the following products
Linkbynet - Linkbynet Managed Services provides cloud computing expertise, high-security business hosting, IT performance management, etc.
Barracuda Essentials - Barracuda Essentials offers advanced Office 365 security features including email scanning, archiving, backup & recovery, and real-time phishing defense.
MobilityGuard - MobilityGuard delivers a full suite of innovative technical security products and services.
Virtru - Virtru is your data privacy force field, wrapping and protecting emails and files wherever they're shared. Easy-to-use data security software for business. People also askIs Virtru Hipaa compliant?
WiscNet Security Services - WiscNet Security Services provide a managed firewall and understands the importance of network security.
Symantec Email Security.cloud - Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats