Right expressions für SMTP strategy in WebGUI

[Mic2025]

Hello community,

I'm using Stalwart Mailserver as a Docker and would like to define SMTP outbound strategies via the web GUI. Unfortunately, the official Stalwart documentation only describes configuration via config files. So, where can I find a list of available expressions for routines in the strategy? For example, I would like Stalwart to use a specific predefined SMTP strategy for a specific email header. How would that work?

Thank you!

Regards,
Mic.