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Add mailcow subdomain sample config #756

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74 changes: 74 additions & 0 deletions mailcow.subdomain.conf.sample
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## Version 2025/03/16
# make sure that your mailcow container is named mailcow
# make sure that you are aqquainted with the mailcow documentation (https://docs.mailcow.email/)
# make sure you have read the most important entries in the "Get Started" section, "Post Installation Tasks -> Reverse Proxy -> Overview" and "Post Installation Tasks -> Reverse Proxy -> Nginx" sections
# make sure that your dns is configured as per your domain requirements and the mailcow documentation
# make sure to set up a mechanism to copy your SSL certificate after each renewal to /data/assets/ssl/ directory for mailcow to use (see mailcow documentation in "Post Installation Tasks -> Reverse Proxy -> Overview")

server {
listen 443 ssl;
listen [::]:443 ssl;

server_name mailcow.* autoconfig.* autodiscover.*; # modify these names to match your domain/mailcow configuration

include /config/nginx/ssl.conf;

client_max_body_size 0;

# enable for ldap auth (requires ldap-location.conf in the location block)
#include /config/nginx/ldap-server.conf;

# enable for Authelia (requires authelia-location.conf in the location block)
#include /config/nginx/authelia-server.conf;

# enable for Authentik (requires authentik-location.conf in the location block)
#include /config/nginx/authentik-server.conf;

location / {
# enable the next two lines for http auth
#auth_basic "Restricted";
#auth_basic_user_file /config/nginx/.htpasswd;

# enable for ldap auth (requires ldap-server.conf in the server block)
#include /config/nginx/ldap-location.conf;

# enable for Authelia (requires authelia-server.conf in the server block)
#include /config/nginx/authelia-location.conf;

# enable for Authentik (requires authentik-server.conf in the server block)
#include /config/nginx/authentik-location.conf;

include /config/nginx/resolver.conf;
set $upstream_app mailcow;
set $upstream_port 8080;
set $upstream_proto http;
proxy_pass $upstream_proto://$upstream_app:$upstream_port;

proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_buffer_size 128k;
proxy_buffers 64 512k;
proxy_busy_buffers_size 512k;
}

location /Microsoft-Server-ActiveSync {
include /config/nginx/resolver.conf;
set $upstream_app mailcow;
set $upstream_port 8080;
set $upstream_proto http;
proxy_pass $upstream_proto://$upstream_app:$upstream_port;

proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_connect_timeout 75;
proxy_send_timeout 3650;
proxy_read_timeout 3650;
proxy_buffers 64 512k;

client_body_buffer_size 512k;
}
}