Hello Carbonio Community,
I am attempting to integrate an external anti-spam filter (Rspamd) as a custom Milter on **Carbonio 25.9 CE (latest version on Ubuntu 24.04)**.
I have followed standard Milter integration steps, but my changes are being ignored or overwritten by the system.
**The core issue:**
1. I have successfully set the Milter chain in LDAP via `zmprov`:
```
zimbraMtaSmtpdMilters: inet:127.0.0.1:11332,inet:127.0.0.1:7026
```
2. However, after running `systemctl restart carbonio-mta.target`, **Postfix is not loading the 11332 Milter.** It appears to be falling back to the default Amavis filter (port 7026) only, or the config generation script is actively filtering the custom Milter out of `main.cf`.
Has anyone found a safe, supported method (e.g., using a local config file or a different attribute) to successfully **override** the Postfix Milter chain in recent Carbonio releases without modifying `master.cf`?
Thank you for any insight!