What are some alternatives?
Symantec Email Security.cloud - Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats
WebTitan - WebTitan is an advanced DNS based web content filter and web security layer that blocks malware, ransomware and phishing attempts as well as providing web content control. Cloud and gateway versions available.
Cisco Email Security - Cisco Email Security protects against ransomware, business email compromise, spoofing, and phishing.
OneLogin - On-demand SSO, directory integration, user provisioning and more
NeoCertified Secure Email - NeoCertified is a solution that provides secure email encryption for businesses and organizations across all industries, including healthcare, finance, legal, non-profit and education.
Acunetix - Audit your website security and web applications for SQL injection, Cross site scripting and other...