diff --git a/deployments/services/email/Proxmox Mail Gateway/Enabling Direct Unfiltered Communication Between Mailcow and PMG.md b/deployments/services/email/Proxmox Mail Gateway/Enabling Direct Unfiltered Communication Between Mailcow and PMG.md
index 306e6b3..1723ab1 100644
--- a/deployments/services/email/Proxmox Mail Gateway/Enabling Direct Unfiltered Communication Between Mailcow and PMG.md	
+++ b/deployments/services/email/Proxmox Mail Gateway/Enabling Direct Unfiltered Communication Between Mailcow and PMG.md	
@@ -92,7 +92,9 @@ Configure PMG as a trusted forwarding host in the Mailcow WebUI.
 ## Configure Postfix Trusted Networks
 The forwarding-host entry does not replace Postfix `mynetworks`.  Add PMG to `mynetworks` so Postfix treats SMTP sessions from PMG as trusted and evaluates `permit_mynetworks` before sender-domain restrictions.
 
-### Inspect the Active Configuration
+### Inspect the Existing Trusted Networks
+Before modifying `mynetworks`, determine the currently active value.  Mailcow automatically populates `mynetworks` with its loopback and Docker networks.  Defining your own value replaces that automatically generated configuration, so you must preserve the existing entries.
+
 On the Mailcow host, run:
 
 ```sh
@@ -100,29 +102,36 @@ cd /opt/mailcow-dockerized
 docker compose exec postfix-mailcow postconf mynetworks
 ```
 
-The validated Bunny Lab configuration is:
+Example output:
+
+```text
+mynetworks = 127.0.0.0/8 172.22.1.0/24 [::1]/128
+```
+
+At this point, append the PMG address as a single-host CIDR.  Do not remove any existing networks.
+
+Expected result:
 
 ```text
 mynetworks = 127.0.0.0/8 172.22.1.0/24 [::1]/128 192.168.3.15/32
 ```
 
-Preserve every existing loopback and Mailcow Docker network.  The PMG address must be appended as a single-host CIDR.
-
 ### Update the Persistent Postfix Override
-Edit the Mailcow Postfix override file:
+
+Edit the Postfix override file:
 
 ```sh
 nano /opt/mailcow-dockerized/data/conf/postfix/extra.cf
 ```
 
-Set the complete `mynetworks` value:
+If `mynetworks` config line already exists, append the PMG address while preserving the existing values.  If the key does not exist, create it using the value discovered in the previous step.
 
 ```ini title="/opt/mailcow-dockerized/data/conf/postfix/extra.cf"
 mynetworks = 127.0.0.0/8 172.22.1.0/24 [::1]/128 192.168.3.15/32
 ```
 
-!!! warning "Preserve Existing Networks"
-    Defining `mynetworks` replaces the automatically derived value.  Do not remove `127.0.0.0/8`, `172.22.1.0/24`, or `[::1]/128` from the validated Bunny Lab configuration.
+!!! warning "Do Not Replace Existing Networks"
+    The `mynetworks` directive replaces Mailcow's automatically generated value.  Removing the existing loopback or Docker networks may prevent Postfix from functioning correctly.  Always preserve the existing entries and append the PMG address.
 
 ### Restart Mailcow Postfix
 Apply the persistent override: