diff --git a/management/daemon.py b/management/daemon.py
index 94a16ecc..99276427 100755
--- a/management/daemon.py
+++ b/management/daemon.py
@@ -523,11 +523,12 @@ def privacy_status_set():
 @app.route('/system/smtp/relay', methods=["GET"])
 @authorized_personnel_only
 def smtp_relay_get():
+	config = utils.load_settings(env)
 	return {
-		"enabled": (env["SMTP_RELAY_ENABLED"] == "true"),
-		"host": env["SMTP_RELAY_HOST"],
-		"auth_enabled": (env["SMTP_RELAY_AUTH"] == "true"),
-		"user": env["SMTP_RELAY_USER"]
+		"enabled": (config.get("SMTP_RELAY_ENABLED", "true") == "true"),
+		"host": config.get("SMTP_RELAY_HOST", ""),
+		"auth_enabled": (config.get("SMTP_RELAY_AUTH", "false") == "true"),
+		"user": config.get("SMTP_RELAY_USER", "")
 	}
 
 @app.route('/system/smtp/relay', methods=["POST"])
@@ -544,7 +545,7 @@ def smtp_relay_set():
 		config["SMTP_RELAY_USER"] = newconf.get("user")
 		utils.write_settings(config, env)
 		# Restart Postfix
-		return "OK"
+		return utils.shell("check_output", ["/usr/bin/systemctl", "restart", "postfix"], capture_stderr=True)
 	except Exception as e:
 		return (str(e), 500)
 
diff --git a/management/utils.py b/management/utils.py
index 652b48f6..f198286c 100644
--- a/management/utils.py
+++ b/management/utils.py
@@ -92,7 +92,7 @@ def sort_domains(domain_names, env):
         # Then in right-to-left lexicographic order of the .-separated parts of the name.
         list(reversed(d.split("."))),
       ))
-    
+
     return domain_names
 
 def sort_email_addresses(email_addresses, env):
diff --git a/setup/mail-postfix.sh b/setup/mail-postfix.sh
index c76e8580..a9f8a426 100755
--- a/setup/mail-postfix.sh
+++ b/setup/mail-postfix.sh
@@ -273,13 +273,6 @@ touch /etc/postfix/sasl_passwd
 chmod 600 /etc/postfix/sasl_passwd
 postmap /etc/postfix/sasl_passwd
 
-# Store those configurations in the mailinabox.conf file
-tools/editconf.py /etc/mailinabox.conf \
-	SMTP_RELAY_ENABLED=false \
-	SMTP_RELAY_HOST="" \
-	SMTP_RELAY_AUTH=false \
-	SMTP_RELAY_USER=""
-
 # Allow the two SMTP ports in the firewall.
 
 ufw_allow smtp