diff --git a/conf/.env.example b/conf/.env.example
index 5b8660d..92ee7fd 100644
--- a/conf/.env.example
+++ b/conf/.env.example
@@ -36,6 +36,7 @@ email.SMTPHost="localhost"
 email.SMTPPort="25"
 email.SMTPUser="__APP__"
 email.SMTPPass="__MAIL_PWD__"
+email.SMTPCrypto="tls"
 
 #--------------------------------------------------------------------
 # Cache configuration (advanced)
diff --git a/doc/POST_INSTALL.md b/doc/POST_INSTALL.md
index 04f51ca..1daf6e6 100644
--- a/doc/POST_INSTALL.md
+++ b/doc/POST_INSTALL.md
@@ -1 +1,2 @@
-After post-installation configuration, go to `__DOMAIN__/cp-admin` to connect to the administration panel.
\ No newline at end of file
+To finish the installation: `__DOMAIN__/cp-install`
+To connect to the administration panel: `__DOMAIN__/cp-admin`
\ No newline at end of file
diff --git a/doc/POST_INSTALL_fr.md b/doc/POST_INSTALL_fr.md
index 5468339..776e181 100644
--- a/doc/POST_INSTALL_fr.md
+++ b/doc/POST_INSTALL_fr.md
@@ -1 +1,2 @@
-Après la configuration post-installation, accédez à `__DOMAIN__/cp-admin` pour vous connecter au panneau d'administration.
\ No newline at end of file
+Pour finir l'installation: `__DOMAIN__/cp-install`
+Pour vous connecter au panneau d'administration : `__DOMAIN__/cp-admin`
diff --git a/scripts/upgrade b/scripts/upgrade
index 2c93281..05fa0ec 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -50,7 +50,7 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=1
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir" --keep=".env"
+	ynh_setup_source --dest_dir="$install_dir" --keep=".env public/media"
 fi
 
 chmod -R o-rwx "$install_dir"