Plugins

To enable a plugin, edit the "plugins" section in the application configuration and add the plugin information to it. Plugin locations are resolved relative to the application plugins folder, so using "./my-plugin" would point to "path/to/app/plugins/my-plugin". The exception is core plugins (starts with "core/"), which resolve to the core plugins folder in ZoneMTA source and plugins installed from npm (start with "module/").

Installable plugins

Here are some plugins that you can install from npm:

• zonemta-delivery-counters – needed by ZMTA-WebAdmin, counts sent and bounced messages
• zonemta-loop-breaker – helps to detect and break mail loops, ensures that the same message is not sent to the same recipient more than once by adding a tracking header
• zonemta-multi-dkim - Load & use a dkim key file based on a header value
• zonemta-auth-keycloak - Authentication with Keycloak
• zonemta-auth-keycloak-token - Authentication with Keycloak token
• zonemta-block-zone - Block sending to specific zone(s)
• zonemta-dry-run - change zonemta mail receiver for testing purpose (With that you can reroute emails to your proper mail server)
• zonemta-auth-boundary - Authentication with Boundary (Hashicorp)

Read more about writing your own plugins here.