feat(setup preprod env and mailing interceptor)

.env.example

@@ -57,6 +57,12 @@ MAIL_FROM_ADDRESS="hello@example.com"
 MAIL_FROM_NAME="${APP_NAME}"
 ADMIN_EMAIL=
 
+# Preprod mail interception
+# Set PREPROD=true to redirect all outgoing mails to the addresses below
+PREPROD=false
+PREPROD_ADMIN_MAILS=
+PREPROD_TEST_MAILS=
+
 AWS_ACCESS_KEY_ID=
 AWS_SECRET_ACCESS_KEY=
 AWS_DEFAULT_REGION=us-east-1