diff --git a/mailcow/src/mailcow-dockerized/data/conf/nginx/includes/site-defaults.conf b/mailcow/src/mailcow-dockerized/data/conf/nginx/includes/site-defaults.conf
index ef2c4fb..1d03e93 100644
--- a/mailcow/src/mailcow-dockerized/data/conf/nginx/includes/site-defaults.conf
+++ b/mailcow/src/mailcow-dockerized/data/conf/nginx/includes/site-defaults.conf
@@ -114,7 +114,7 @@
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_redirect off;
-      error_page 403 /_rspamderror.php;
+      error_page 401 /_rspamderror.php;
     }
     proxy_pass       http://rspamd:11334/;
     proxy_set_header Host      $http_host;
diff --git a/mailcow/src/mailcow-dockerized/data/conf/nginx/site.conf b/mailcow/src/mailcow-dockerized/data/conf/nginx/site.conf
index 1b46d2b..fb40de8 100644
--- a/mailcow/src/mailcow-dockerized/data/conf/nginx/site.conf
+++ b/mailcow/src/mailcow-dockerized/data/conf/nginx/site.conf
@@ -1,5 +1,6 @@
 proxy_cache_path /tmp levels=1:2 keys_zone=sogo:10m inactive=24h  max_size=1g;
-server_names_hash_bucket_size 64;
+server_names_hash_max_size 512;
+server_names_hash_bucket_size 128;
 
 map $http_x_forwarded_proto $client_req_scheme {
      default $scheme;
diff --git a/mailcow/src/mailcow-dockerized/data/conf/nginx/templates/listen_ssl.template b/mailcow/src/mailcow-dockerized/data/conf/nginx/templates/listen_ssl.template
index 93ec80c..40c402d 100644
--- a/mailcow/src/mailcow-dockerized/data/conf/nginx/templates/listen_ssl.template
+++ b/mailcow/src/mailcow-dockerized/data/conf/nginx/templates/listen_ssl.template
@@ -1,2 +1,3 @@
-listen ${HTTPS_PORT} ssl http2;
-listen [::]:${HTTPS_PORT} ssl http2;
+listen ${HTTPS_PORT} ssl;
+listen [::]:${HTTPS_PORT} ssl;
+http2 on;