Redirect HTTP to HTTPS
If you are using a reverse proxy in front of mailcow, please see our reverse proxy guide for this, which includes a redirect from HTTP to HTTPS.
Open mailcow.conf and set HTTP_BIND= - if not already set.
Version >= 2025-01a¶
Open mailcow.conf and set HTTP_REDIRECT=y.
Recreate the container:
docker compose up -d
docker-compose up -d
Version < 2025-01¶
Since February the 28th 2017 mailcow does come with port 80 and 443 enabled.
Create a new file data/conf/nginx/redirect.conf and add the following server config to the file:
server {
root /web;
listen 80 default_server;
listen [::]:80 default_server;
include /etc/nginx/conf.d/server_name.active;
if ( $request_uri ~* "%0A|%0D" ) { return 403; }
location ^~ /.well-known/acme-challenge/ {
allow all;
default_type "text/plain";
}
location / {
return 301 https://$host$uri$is_args$args;
}
}
In case you changed the HTTP_BIND parameter, recreate the container:
docker compose up -d
docker-compose up -d
Otherwise restart Nginx:
docker compose restart
docker-compose restart