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+# Mailu main configuration file
+#
+# Most configuration variables can be modified through the Web interface,
+# these few settings must however be configured before starting the mail
+# server and require a restart upon change.
+
+###################################
+# Common configuration variables
+###################################
+
+# Set this to the path where Mailu data and configuration is stored
+ROOT=/mailu
+
+# Mailu version to run (1.0, 1.1, etc. or master)
+VERSION=master
+
+# Set to a randomly generated 16 bytes string
+SECRET_KEY=ChangeMeChangeMe
+
+# Address where listening ports should bind
+BIND_ADDRESS4=127.0.0.1
+BIND_ADDRESS6=::1
+
+# Main mail domain
+DOMAIN=mailu.io
+
+# Hostnames for this server, separated with comas
+HOSTNAMES=mail.mailu.io,alternative.mailu.io,yetanother.mailu.io
+
+# Postmaster local part (will append the main mail domain)
+POSTMASTER=admin
+
+# Choose how secure connections will behave (value: letsencrypt, cert, notls, mail, mail-letsencrypt)
+TLS_FLAVOR=cert
+
+# Authentication rate limit (per source IP address)
+AUTH_RATELIMIT=10/minute;1000/hour
+
+# Opt-out of statistics, replace with "True" to opt out
+DISABLE_STATISTICS=False
+
+###################################
+# Optional features
+###################################
+
+# Expose the admin interface (value: true, false)
+ADMIN=false
+
+# Choose which webmail to run if any (values: roundcube, rainloop, none)
+WEBMAIL=none
+
+# Dav server implementation (value: radicale, none)
+WEBDAV=none
+
+# Antivirus solution (value: clamav, none)
+ANTIVIRUS=none
+
+###################################
+# Mail settings
+###################################
+
+# Message size limit in bytes
+# Default: accept messages up to 50MB
+MESSAGE_SIZE_LIMIT=50000000
+
+# Networks granted relay permissions, make sure that you include your Docker
+# internal network (default to 172.17.0.0/16)
+RELAYNETS=172.16.0.0/12
+
+# Will relay all outgoing mails if configured
+RELAYHOST=
+
+# Fetchmail delay
+FETCHMAIL_DELAY=600
+
+# Recipient delimiter, character used to delimiter localpart from custom address part
+# e.g. localpart+custom@domain;tld
+RECIPIENT_DELIMITER=+
+
+# DMARC rua and ruf email
+DMARC_RUA=admin
+DMARC_RUF=admin
+
+# Welcome email, enable and set a topic and body if you wish to send welcome
+# emails to all users.
+WELCOME=false
+WELCOME_SUBJECT=Welcome to your new email account
+WELCOME_BODY=Welcome to your new email account, if you can read this, then it is configured properly!
+
+# Maildir Compression
+# choose compression-method, default: none (value: bz2, gz)
+COMPRESSION=
+# change compression-level, default: 6 (value: 1-9)
+COMPRESSION_LEVEL=
+
+###################################
+# Web settings
+###################################
+
+# Path to the admin interface if enabled
+WEB_ADMIN=/admin
+
+# Path to the webmail if enabled
+WEB_WEBMAIL=/webmail
+
+# Website name
+SITENAME=Mailu
+
+# Linked Website URL
+WEBSITE=https://mailu.io
+
+# Registration reCaptcha settings (warning, this has some privacy impact)
+# RECAPTCHA_PUBLIC_KEY=
+# RECAPTCHA_PRIVATE_KEY=
+
+# Domain registration, uncomment to enable
+# DOMAIN_REGISTRATION=true
+
+###################################
+# Advanced settings
+###################################
+
+# Docker-compose project name, this will prepended to containers names.
+COMPOSE_PROJECT_NAME=mailu
+
+# Default password scheme used for newly created accounts and changed passwords
+# (value: SHA512-CRYPT, SHA256-CRYPT, MD5-CRYPT, CRYPT)
+PASSWORD_SCHEME=SHA512-CRYPT
+
+# Header to take the real ip from
+REAL_IP_HEADER=
+
+# IPs for nginx set_real_ip_from (CIDR list separated by commas)
+REAL_IP_FROM=