diff --git a/README.md b/README.md
index b83915f..58c607e 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,92 @@
-# aio-stalwart
-StalWart container used in https://github.com/nextcloud/all-in-one/tree/main/community-containers/stalwart
+> [!WARNING]
+> Stalwart and nextcloud community containers are solutions under development.
+>
+> Additionally, hosting your own mail server is one of the most difficult services to deploy.
+> 
+> I try my best to make this as simple as possible. This solution is quite stable (I use it for my cloud) but it is not enterprise quality.
+> 
+> If you have any suggestions, questions or want to report a bug, [open an issue](https://github.com/docjyj/aio-stalwart/issues)!
+
+# Stalwart community container for Nextcloud All-in-one
+
+This container is used in [Nextcloud All-in-one](https://github.com/nextcloud/all-in-one/tree/main/community-containers/stalwart) to provide a mail server.
+
+Compared to a default Stalwart container, this container allows:
+- Automatically configures a mail server and *(In progress) tutorials for actions need to be done manually and advanced feature*.
+- Compatible with Nextcloud AIO backups.
+- *(Planned) Synchronization of Nextcloud and Stalwart accounts.*
+
+## Getting started
+
+### Prerequisites
+
+1. You will run this container on a server with a static IP address.
+2. Make sure than port `25`, `465`, `993`, `4190` and `10003` are not used by another programme. (Use `sudo netstat -tulpn` to list all used ports).
+3. You have deployed the [caddy community container](https://github.com/nextcloud/all-in-one/tree/main/community-containers/caddy) as reverse proxy. (Other solutions are possible, see: [Use your own reverse proxy](#use-your-own-reverse-proxy)).
+
+### Installation
+
+See [how to use community containers](https://github.com/nextcloud/all-in-one/tree/main/community-containers#how-to-use-this).
+
+After installation on nextcloud go to `https://mail.$NC_DOMAIN/login` and login with the following credentials:
+- Username: `admin`
+- Password: get with the command `docker inspect nextcloud-aio-stalwart  | grep STALWART_USER_PASS`
+
+Once connected, add a domain, configure your DNS zone and create your users.
+
+## Advanced configuration
+
+### Use your own reverse proxy
+
+You need to redirect http (or https) traffic from `mail.$NC_DOMAIN` to port `10003` of the `nextcloud-aio-stalwart` container in `http`.
+
+**Then add your own certificate.** See : [Use your own certificate](#use-your-own-certificate)
+
+Example with `Caddyfile` syntax:
+```caddyfile
+https://mail.{$NC_DOMAIN}:443 {
+    reverse_proxy http://{$STALWAER_IP}:10003
+}
+```
+
+### Use your own certificate
+
+Please add a certificate in volume `nextcloud_aio_caddy` in this path:
+- `$VOLUME_ROOT/caddy/certificates/acme-v02.api.letsencrypt.org-directory/mail.$NC_DOMAIN/mail.$NC_DOMAIN.key`
+- `$VOLUME_ROOT/caddy/certificates/acme-v02.api.letsencrypt.org-directory/mail.$NC_DOMAIN/mail.$NC_DOMAIN.crt`
+
+If you're using caddy, you can mount the volume `nextcloud_aio_caddy` your caddy container and add this [storage global directive](https://caddyserver.com/docs/caddyfile/options#storage):
+```caddyfile
+{
+    storage file_system {$VOLUME_ROOT}/caddy
+}
+```
+
+## Upgrading
+> [!NOTE]
+> Unless the starting script tells you, you have no action to do to update.
+
+See https://github.com/stalwartlabs/mail-server/blob/main/UPGRADING.md
+
+During a major server update, this message will be displayed:
+
+```
+Your data is in an old format.
+Make a backup and see https://github.com/docjyJ/aio-stalwart#Upgrading
+To avoid any loss of data, Stalwart will not launch.
+```
+
+> [!CAUTION]
+> Before each update don't forget to make a backup.
+
+### Upgrading from 0.7.x to 0.8.x
+
+Run the script [`update_0.7_to_0.8.sh`](https://github.com/docjyJ/aio-stalwart/blob/main/scripts/update_0.7_to_0.8.sh) to update the data.
+
+Please before upgrading, do a backup of your data !
+
+If you're using the root user to run docker, read the script before running it.
+
+```bash
+curl -s https://raw.githubusercontent.com/docjyJ/aio-stalwart/main/scripts/backup.sh | bash
+```
diff --git a/config.toml b/config.toml
index fa40e6a..b81ee6b 100644
--- a/config.toml
+++ b/config.toml
@@ -53,8 +53,7 @@ level = "info"
 ansi = false
 enable = true
 
-[lookup."nextcloud-aio"]
-domain = "%{env:NC_DOMAIN}%"
+[lookup.default]
 hostname = "mail.%{env:NC_DOMAIN}%"
 
 [certificate.nextcloud-aio]
diff --git a/script/update_0.7_to_0.8.sh b/script/update_0.7_to_0.8.sh
new file mode 100644
index 0000000..dedc8d7
--- /dev/null
+++ b/script/update_0.7_to_0.8.sh
@@ -0,0 +1,10 @@
+echo -e '\033[0;31m WARNING: Please go in your AIO interface and backup your data before running this script. \033[0m'
+read -p "Are-you sure you want to continue? (y/n) " -n 1 -r
+echo -e '\n'
+if [[ $REPLY =~ ^[Yy]$ ]]
+then
+  docker stop nextcloud-aio-stalwart
+  docker run --rm -v nextcloud_aio_stalwart:/opt/stalwart-mail -it --entrypoint /bin/bash stalwartlabs/mail-server:v0.7.3 -c 'stalwart-mail --config /opt/stalwart-mail/etc/config.toml --export /opt/stalwart-mail/export'
+  docker run --rm -v nextcloud_aio_stalwart:/opt/stalwart-mail -it --entrypoint /bin/bash stalwartlabs/mail-server:v0.8.0 -c 'stalwart-mail --config /opt/stalwart-mail/etc/config.toml --import /opt/stalwart-mail/export && echo "0.8.0" > /opt/stalwart-mail/aio.lock'
+fi
+echo 'Finished'
diff --git a/start.sh b/start.sh
index 3ea2331..e107d72 100644
--- a/start.sh
+++ b/start.sh
@@ -7,7 +7,7 @@ DATA_VERSION="0.8.0"
 if [ -f "$AIO_LOCK" ]; then
     if [ "$DATA_VERSION" != "$(cat "$AIO_LOCK")" ]; then
         echo "Your data is in an old format."
-        echo "Make a backup and see https://github.com/nextcloud/all-in-one/blob/main/community-containers/stalwart/upgrading.md"
+        echo "Make a backup and see https://github.com/docjyJ/aio-stalwart#Upgrading"
         echo "To avoid any loss of data, Stalwart will not launch."
         exit 1
     fi