Outbound email configuration is mandatory for Firezone and supports many different delivery adapters. Yet, most users will only need an SMTP relay to send emails, so this configuration enforced by default.
If you want to utilize an alternative way to send emails (e.g. via a supportd API-based service), enable this option and define OUTBOUND_EMAIL_FROM, OUTBOUND_EMAIL_ADAPTER and OUTBOUND_EMAIL_ADAPTER_OPTS manually via services.firezone.server.settings and/or services.firezone.server.settingsSecret.
The Firezone documentation holds a list of supported Swoosh adapters.
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