diff --git a/chartbrew/docker-compose.yaml b/chartbrew/docker-compose.yaml
index 0a946ae..a609098 100644
--- a/chartbrew/docker-compose.yaml
+++ b/chartbrew/docker-compose.yaml
@@ -17,22 +17,14 @@ services:
       - CB_API_PORT=4019
       - CB_API_HOST=0.0.0.0
       - CB_ENCRYPTION_KEY=Cxz7i+Dg4+i/wsXaQUEpG7mAUjiSb5yXZnYAYfAo3XdJEUYFMCeNROqADyaj/5TL
-      - CB_MAIL_HOST
-      - CB_MAIL_HOST_DEV
-      - CB_MAIL_USER
-      - CB_MAIL_USER_DEV
-      CB_MAIL_PASS
-      CB_MAIL_PASS_DEV
-      CB_MAIL_PORT
-      CB_MAIL_PORT_DEV
-      CB_MAIL_SECURE
-      CB_MAIL_SECURE_DEV
-      CB_ADMIN_MAIL
-      CB_ADMIN_MAIL_DEV
-      CB_OPENAI_API_KEY
-      CB_OPENAI_API_KEY_DEV
-      CB_OPENAI_MODEL
-      CB_OPENAI_MODEL_DEV
+      - CB_MAIL_HOST =  ${SYSTEM_EMAIL_USER}
+      - CB_MAIL_USER =  ${SYSTEM_EMAIL_PASSSWORD}
+      - CB_MAIL_PASS =  ${SYSTEM_EMAIL_SMTP_HOST}
+      - CB_MAIL_PORT = ${SYSTEM_EMAIL_SMTP_PORT}
+      - CB_MAIL_SECURE = ${SYSTEM_EMAIL_SMTP_SECURITY}
+      - CB_ADMIN_MAIL = soenke@domroese.eu
+      - CB_OPENAI_API_KEY = 
+      - CB_OPENAI_MODEL = 
     ports:
       - '4018:4018'
       - '4019:4019'
diff --git a/chartbrew/privatekeypem4096.pem b/chartbrew/privatekeypem4096.pem
deleted file mode 100644
index e69de29..0000000