
Hermes Secure Email Gateway
7.7#3 in email security gatewaysFree planFree planWebLinuxSelf-hosted
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| Fact | Hermes Secure Email Gateway | Mailprotector |
|---|---|---|
| Encryption | Hermes supports SMTP TLS, S/MIME, PGP, encrypted-PDF fallback and Dovecot mail-crypt encryption at rest. | Bracket encrypts messages when the subject contains square brackets and requires no apps, plugins, or passwords from senders or recipients. |
| Integrations | Published integration targets include Microsoft 365, Google Workspace, Exchange, Postfix, Nextcloud, LDAP and Active Directory. | The integrations page lists ConnectWise, Autotask, and Gradient for synchronizing licensing or service counts and billing workflows. |
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.
Mailprotector is aimed at managed service providers seeking email security and management products for customer environments. Its product mix includes gateway filtering, encryption, and archiving.