fix: improve chmod for "/var/log/mail/*"

CHANGELOG.md

@@ -6,6 +6,11 @@ All notable changes to this project will be documented in this file. The format
 
 > **Note**: Changes and additions listed here are contained in the `:edge` image tag. These changes may not be as stable as released changes.
 
+### Updates
+
+**Internal:**
+  - Improved permission updating command to prevent errors when no logs are present ([#4391](https://github.com/docker-mailserver/docker-mailserver/pull/4391))
+
 ## [v15.0.0](https://github.com/docker-mailserver/docker-mailserver/releases/tag/v15.0.0)
 
 ### Breaking

target/scripts/startup/setup-stack.sh

@@ -144,5 +144,5 @@ function __log_fixes() {
   # Volume permissions should be corrected:
   # https://github.com/docker-mailserver/docker-mailserver-helm/issues/137
   chmod 755 /var/log/mail/
-  chmod 640 /var/log/mail/*
+  find /var/log/mail/ -type f -exec chmod 640 {} +
 }