diff --git a/stalwart/DEBIAN/conffiles b/stalwart/DEBIAN/conffiles
index dd971ec..8fc1a47 100644
--- a/stalwart/DEBIAN/conffiles
+++ b/stalwart/DEBIAN/conffiles
@@ -1 +1 @@
-/etc/stalwart.toml
+/etc/stalwart/stalwart.env
diff --git a/stalwart/DEBIAN/postinst b/stalwart/DEBIAN/postinst
index 46bc69d..4ec6512 100644
--- a/stalwart/DEBIAN/postinst
+++ b/stalwart/DEBIAN/postinst
@@ -28,28 +28,5 @@ case "${1}" in
     /usr/bin/install --directory --group='stalwart' --mode='750' --owner='stalwart' '/var/lib/stalwart'
     /usr/bin/install --directory --group='stalwart' --mode='750' --owner='stalwart' '/var/log/stalwart'
     /usr/bin/install --directory --group='stalwart' --mode='750' --owner='stalwart' '/var/logrotate/stalwart'
-    if ! /usr/bin/grep --quiet "secret =" '/etc/stalwart.toml'; then
-    PASSWORD=$(/usr/bin/openssl rand -base64 '18')
-    PASSWORD_SHA512=$(/usr/bin/echo "${PASSWORD}" | /usr/bin/openssl passwd -noverify -stdin -quiet -6)
-      /usr/bin/echo "secret = \"${PASSWORD_SHA512}\"" >> '/etc/stalwart.toml'
-      /usr/bin/chown 'stalwart' '/etc/stalwart.toml'
-      /usr/bin/echo '##'
-      /usr/bin/echo '##'
-      /usr/bin/echo '## User: root '
-      /usr/bin/echo "## Password: ${PASSWORD}"
-      /usr/bin/echo '##'
-      /usr/bin/echo '##'
-    fi
-    if [ -x '/usr/bin/deb-systemd-invoke' ]; then
-      /usr/bin/systemctl --system daemon-reload > '/dev/null' 2>&1 || \
-        /usr/bin/true
-      if [ -n "${2}" ]; then
-        _dh_action='restart'
-      else
-        _dh_action='start'
-      fi
-      /usr/bin/deb-systemd-invoke "${_dh_action}" 'stalwart.service' > '/dev/null' 2>&1 || \
-        /usr/bin/true
-    fi
   ;;
 esac
diff --git a/stalwart/etc/init.d/stalwart b/stalwart/etc/init.d/stalwart
index 470c73b..470db19 100644
--- a/stalwart/etc/init.d/stalwart
+++ b/stalwart/etc/init.d/stalwart
@@ -22,14 +22,19 @@ GROUP='stalwart'
 PIDFOLDER="/run/${NAME}"
 PIDFILE="${PIDFOLDER}/${NAME}.pid"
 DAEMON='/usr/sbin/stalwart'
-DAEMON_CONFIG='/etc/stalwart.toml'
+DAEMON_CONFIG='/etc/stalwart/config.json'
 DAEMON_OPTS="--config ${DAEMON_CONFIG}"
+ENVIRONMENT='/etc/stalwart/stalwart.env'
 
 set -e
 
 [ -f "${DAEMON_CONFIG}" ]
+[ -f "${ENVIRONMENT}" ]
 
 . '/lib/lsb/init-functions'
+set -a
+. "${ENVIRONMENT}"
+set +a
 
 [ -x "${DAEMON}" ]
 
diff --git a/stalwart/etc/stalwart.toml b/stalwart/etc/stalwart.toml
deleted file mode 100644
index efdf1b0..0000000
--- a/stalwart/etc/stalwart.toml
+++ /dev/null
@@ -1,71 +0,0 @@
-[server.listener.smtp]
-bind = "[::]:25"
-protocol = "smtp"
-
-[server.listener.submission]
-bind = "[::]:587"
-protocol = "smtp"
-
-[server.listener.submissions]
-bind = "[::]:465"
-protocol = "smtp"
-tls.implicit = true
-
-[server.listener.imap]
-bind = "[::]:143"
-protocol = "imap"
-
-[server.listener.imaptls]
-bind = "[::]:993"
-protocol = "imap"
-tls.implicit = true
-
-[server.listener.pop3]
-bind = "[::]:110"
-protocol = "pop3"
-
-[server.listener.pop3s]
-bind = "[::]:995"
-protocol = "pop3"
-tls.implicit = true
-
-[server.listener.sieve]
-bind = "[::]:4190"
-protocol = "managesieve"
-
-[server.listener.https]
-protocol = "http"
-bind = "[::]:8443"
-tls.implicit = true
-
-[server.listener.http]
-protocol = "http"
-bind = "[::]:80"
-
-[storage]
-data = "rocksdb"
-fts = "rocksdb"
-blob = "rocksdb"
-lookup = "rocksdb"
-directory = "internal"
-
-[store.rocksdb]
-type = "rocksdb"
-path = "/var/lib/stalwart"
-compression = "lz4"
-
-[directory.internal]
-type = "internal"
-store = "rocksdb"
-
-[tracer.log]
-type = "log"
-level = "info"
-path = "/var/log/stalwart"
-prefix = "stalwart.log"
-rotate = "never"
-ansi = false
-enable = true
-
-[authentication.fallback-admin]
-user = "root"
diff --git a/stalwart/etc/stalwart/stalwart.env b/stalwart/etc/stalwart/stalwart.env
new file mode 100644
index 0000000..ad7a8be
--- /dev/null
+++ b/stalwart/etc/stalwart/stalwart.env
@@ -0,0 +1,30 @@
+# Environment variables for the Stalwart service.
+# Uncomment and edit an entry to override its default.
+
+# Override the hostname used in HTTP responses
+STALWART_HOSTNAME=mail.example.com
+
+# Override the public base URL published in OAuth, OIDC, and JMAP discovery
+# documents. Accepts scheme, host, optional port, and optional path prefix.
+STALWART_PUBLIC_URL=https://mail.example.com
+
+# Enable bootstrap / recovery mode on startup. Accepted: 1, true. Default: false.
+STALWART_RECOVERY_MODE=false
+
+# Log level while in recovery mode. Default: info.
+STALWART_RECOVERY_MODE_LOG_LEVEL=info
+
+# HTTP port used in recovery mode. Default: 8080.
+STALWART_RECOVERY_MODE_PORT=8080
+
+# Fixed administrator credentials — format: username:password
+# Default: a temporary random password is generated and printed to the logs.
+#STALWART_RECOVERY_ADMIN=admin:changeme
+
+# Cluster role assigned to this node. Must match a role name defined in the
+# cluster registry. Leave unset for a standalone (non-clustered) deployment.
+STALWART_ROLE=standalone
+
+# Push-notification shard this node is responsible for, when running in a
+# cluster.
+STALWART_PUSH_SHARD=0
\ No newline at end of file
diff --git a/stalwart/lib/systemd/system/stalwart.service b/stalwart/lib/systemd/system/stalwart.service
index e56274b..4cba1e4 100644
--- a/stalwart/lib/systemd/system/stalwart.service
+++ b/stalwart/lib/systemd/system/stalwart.service
@@ -10,8 +10,9 @@ After=network-online.target
 Type=simple
 AmbientCapabilities=CAP_NET_BIND_SERVICE
 Restart=on-failure
-RestartSec=15
-ExecStart=/usr/sbin/stalwart --config=/etc/stalwart.toml
+RestartSec=5
+EnvironmentFile=-/etc/stalwart/stalwart.env
+ExecStart=/usr/sbin/stalwart --config=/etc/stalwart/config.json
 ExecStartPost=/usr/bin/sh -c "umask '022'; /usr/bin/pgrep --newest 'stalwart' > '/run/stalwart/stalwart.pid'"
 ExecStop=/usr/bin/rm --force '/run/stalwart/stalwart.pid'
 LimitNOFILE=65536
@@ -22,12 +23,13 @@ Group=stalwart
 PrivateDevices=true
 PrivateTmp=true
 ProtectSystem=strict
-ReadWriteDirectories=/etc/stalwart.toml
+ReadWriteDirectories=/etc/stalwart
 ReadWriteDirectories=/var/lib/stalwart
 ReadWriteDirectories=/var/log/stalwart
 RuntimeDirectory=stalwart
 RuntimeDirectoryMode=755
 RuntimeDirectoryPreserve=yes
+SyslogIdentifier=stalwart
 WorkingDirectory=/var/lib/stalwart
 
 [Install]