mailcow-dockerized-docs/docs/post_installation/reverse-proxy/r_p-apache24.en.md

!!! warning "Important" First read the overview.

Required modules:

a2enmod rewrite proxy proxy_http headers ssl

Let's Encrypt will follow our rewrite, certificate requests in mailcow will work fine.

Take care of highlighted lines.

<VirtualHost *:80>
  ServerName CHANGE_TO_MAILCOW_HOSTNAME
  ServerAlias autodiscover.*
  ServerAlias autoconfig.*
  RewriteEngine on

  RewriteCond %{HTTPS} off
  RewriteRule ^/?(.*) https://%{HTTP_HOST}/$1 [R=301,L]

  ProxyPass / http://127.0.0.1:8080/
  ProxyPassReverse / http://127.0.0.1:8080/
  ProxyPreserveHost On
  ProxyAddHeaders On
  RequestHeader set X-Forwarded-Proto "http"
</VirtualHost>
<VirtualHost *:443>
  ServerName CHANGE_TO_MAILCOW_HOSTNAME
  ServerAlias autodiscover.*
  ServerAlias autoconfig.*

  # You should proxy to a plain HTTP session to offload SSL processing
  ProxyPass /Microsoft-Server-ActiveSync http://127.0.0.1:8080/Microsoft-Server-ActiveSync connectiontimeout=4000
  ProxyPassReverse /Microsoft-Server-ActiveSync http://127.0.0.1:8080/Microsoft-Server-ActiveSync
  ProxyPass / http://127.0.0.1:8080/
  ProxyPassReverse / http://127.0.0.1:8080/
  ProxyPreserveHost On
  ProxyAddHeaders On
  RequestHeader set X-Forwarded-Proto "https"

  SSLCertificateFile MAILCOW_PATH/data/assets/ssl/cert.pem
  SSLCertificateKeyFile MAILCOW_PATH/data/assets/ssl/key.pem

  # If you plan to proxy to a HTTPS host:
  #SSLProxyEngine On

  # If you plan to proxy to an untrusted HTTPS host:
  #SSLProxyVerify none
  #SSLProxyCheckPeerCN off
  #SSLProxyCheckPeerName off
  #SSLProxyCheckPeerExpire off
</VirtualHost>