
Hermes Secure Email Gateway
7.7#3 in email security gatewaysFree planFree planWebLinuxSelf-hosted
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Hermes is aimed at SMBs, MSPs, self-hosters, privacy-focused teams, and organizations adding a gateway before Microsoft 365 or Google Workspace. It requires a Linux host capable of running its specified Docker components.
It suits healthcare organizations seeking web-based encrypted email with password-verified link delivery. It may also fit teams that use Outlook or Gmail and need admin access controls.