18.3
Cloudflare Gateway is a web and network filtering service with controls for blocking content and managing how users reach online resources.
Free planAndroidiOSWeb
Alternatives to MDaemon SecurityGateway
27.5
AndroidiOSAPI
36.8
Symantec IT Management Suite manages, patches, and remediates application and operating system configurations across desktops, laptops, and servers…
WebAPILinux
- 4
Kerio Connect
AndroidiOSWebAPI6.6 - 5
SpamHero Business Email Security
SpamHero Business Email Security filters a domain’s incoming email in the cloud and forwards clean messages to the customer’s mail server.
WebAPI6.5From $5 a month - 6
Sophos Secure Message
Sophos Secure Message is part of Sophos Email, a cloud service that protects inboxes from phishing, business email compromise, spam, and email-delivered malware.
Web6.2 - 7
Libraesva Email Security
Libraesva Email Security provides layered, AI-driven protection against email threats for organizations.
WebSelf-hosted5.8 - 8
Proxmox Mail Gateway
Proxmox Mail Gateway is an open-source email gateway for Linux and the web, deployed in a gateway role with outbound filtering.
WebLinux5.8From €190 a year - 9
SpamTitan Gateway
SpamTitan Gateway is an anti-spam appliance for administrators who need to control mail flow and protect networks from unwanted email and malware.
WebSelf-hosted5.8 - 10
Mailinblack Protect
Mailinblack Protect is an email-security solution for companies, public administrations, and healthcare institutions.
WebAPISelf-hosted5.6 - 11
Barracuda Message Archiver
WebmacOSWindows5.3 - 125.1
- 135.1
- 14
4.9 - 154.9
- 16
4.8 - 17
4.5