You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
mailu/core/nginx/conf/nginx.conf

256 lines
6.7 KiB
Nginx Configuration File

# Basic configuration
user nginx;
worker_processes auto;
error_log /dev/stderr info;
pid /var/run/nginx.pid;
load_module "modules/ngx_mail_module.so";
events {
worker_connections 1024;
}
http {
# Standard HTTP configuration with slight hardening
include /etc/nginx/mime.types;
default_type application/octet-stream;
access_log /dev/stdout;
sendfile on;
keepalive_timeout 65;
server_tokens off;
absolute_redirect off;
resolver {{ RESOLVER }} valid=30s;
{% if REAL_IP_HEADER %}
real_ip_header {{ REAL_IP_HEADER }};
{% endif %}
{% if REAL_IP_FROM %}{% for from_ip in REAL_IP_FROM.split(',') %}
set_real_ip_from {{ from_ip }};
{% endfor %}{% endif %}
# Header maps
map $http_x_forwarded_proto $proxy_x_forwarded_proto {
default $http_x_forwarded_proto;
'' $scheme;
}
# Main HTTP server
server {
# Variables for proxifying
set $admin {{ HOST_ADMIN }};
set $antispam {{ HOST_ANTISPAM }};
set $webmail {{ HOST_WEBMAIL }};
set $webdav {{ HOST_WEBDAV }};
# Always listen over HTTP
listen 80;
listen [::]:80;
# Only enable HTTPS if TLS is enabled with no error
{% if TLS and not TLS_ERROR %}
listen 443 ssl;
listen [::]:443 ssl;
include /etc/nginx/tls.conf;
ssl_session_cache shared:SSLHTTP:50m;
add_header Strict-Transport-Security 'max-age=31536000';
{% if not TLS_FLAVOR in [ 'mail', 'mail-letsencrypt' ] %}
if ($proxy_x_forwarded_proto = http) {
return 301 https://$host$request_uri;
}
{% endif %}
{% endif %}
add_header X-Frame-Options 'SAMEORIGIN';
add_header X-Content-Type-Options 'nosniff';
add_header X-Permitted-Cross-Domain-Policies 'none';
add_header X-XSS-Protection '1; mode=block';
add_header Referrer-Policy 'same-origin';
# In any case, enable the proxy for certbot if the flavor is letsencrypt
{% if TLS_FLAVOR in [ 'letsencrypt', 'mail-letsencrypt' ] %}
location ^~ /.well-known/acme-challenge/ {
proxy_pass http://127.0.0.1:8008;
}
{% endif %}
# If TLS is failing, prevent access to anything except certbot
{% if TLS_ERROR and not TLS_FLAVOR == "mail" %}
location / {
return 403;
}
{% else %}
# Actual logic
{% if WEBMAIL != 'none' %}
location / {
return 301 {{ WEB_WEBMAIL }};
}
location {{ WEB_WEBMAIL }} {
rewrite ^({{ WEB_WEBMAIL }})$ $1/ permanent;
rewrite ^{{ WEB_WEBMAIL }}/(.*) /$1 break;
include /etc/nginx/proxy.conf;
client_max_body_size 30M;
proxy_pass http://$webmail;
}
{% endif %}
{% if ADMIN == 'true' %}
location {{ WEB_ADMIN }} {
return 301 {{ WEB_ADMIN }}/ui;
}
location ~ {{ WEB_ADMIN }}/(ui|static) {
rewrite ^{{ WEB_ADMIN }}/(.*) /$1 break;
include /etc/nginx/proxy.conf;
proxy_set_header X-Forwarded-Prefix {{ WEB_ADMIN }};
proxy_pass http://$admin;
}
location {{ WEB_ADMIN }}/antispam {
rewrite ^{{ WEB_ADMIN }}/antispam/(.*) /$1 break;
auth_request /internal/auth/admin;
proxy_set_header X-Real-IP "";
proxy_set_header X-Forwarded-For "";
proxy_pass http://$antispam;
}
{% endif %}
{% if WEBDAV != 'none' %}
location /webdav {
rewrite ^/webdav/(.*) /$1 break;
auth_request /internal/auth/basic;
auth_request_set $user $upstream_http_x_user;
include /etc/nginx/proxy.conf;
proxy_set_header X-Remote-User $user;
proxy_set_header X-Script-Name /webdav;
proxy_pass http://$webdav;
}
location ~ ^/.well-known/(carddav|caldav) {
return 301 /webdav/;
}
{% endif %}
{% endif %}
location /internal {
internal;
proxy_set_header Authorization $http_authorization;
proxy_pass_header Authorization;
proxy_pass http://$admin;
proxy_pass_request_body off;
proxy_set_header Content-Length "";
}
}
# Forwarding authentication server
server {
# Variables for proxifying
set $admin {{ HOST_ADMIN }};
listen 127.0.0.1:8000;
location / {
proxy_pass http://$admin/internal$request_uri;
}
}
}
mail {
server_name {{ HOSTNAMES.split(",")[0] }};
auth_http http://127.0.0.1:8000/auth/email;
proxy_pass_error_message on;
resolver {{ RESOLVER }} valid=30s;
{% if TLS and not TLS_ERROR %}
include /etc/nginx/tls.conf;
ssl_session_cache shared:SSLMAIL:50m;
{% endif %}
# Default SMTP server for the webmail (no encryption, but authentication)
server {
listen 10025;
protocol smtp;
smtp_auth plain;
}
# Default IMAP server for the webmail (no encryption, but authentication)
server {
listen 10143;
protocol imap;
smtp_auth plain;
}
# SMTP is always enabled, to avoid losing emails when TLS is failing
server {
listen 25;
listen [::]:25;
{% if TLS and not TLS_ERROR %}
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:ECDHE-RSA-AES128-GCM-SHA256:AES256+EECDH:DHE-RSA-AES128-GCM-SHA256:AES256+EDH:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";
starttls on;
{% endif %}
protocol smtp;
smtp_auth none;
}
# All other protocols are disabled if TLS is failing
{% if not TLS_ERROR %}
server {
listen 143;
listen [::]:143;
{% if TLS %}
starttls only;
{% endif %}
protocol imap;
imap_auth plain;
}
server {
listen 110;
listen [::]:110;
{% if TLS %}
starttls only;
{% endif %}
protocol pop3;
pop3_auth plain;
}
server {
listen 587;
listen [::]:587;
{% if TLS %}
starttls only;
{% endif %}
protocol smtp;
smtp_auth plain;
}
{% if TLS %}
server {
listen 465 ssl;
listen [::]:465 ssl;
protocol smtp;
smtp_auth plain;
}
server {
listen 993 ssl;
listen [::]:993 ssl;
protocol imap;
imap_auth plain;
}
server {
listen 995 ssl;
listen [::]:995 ssl;
protocol pop3;
pop3_auth plain;
}
{% endif %}
{% endif %}
}