Postal even now supports the version 1 (or legacy) configuration format from Postal v2 and previously. For anyone who is applying this config file, you are going to get a warning while in the logs when commencing Postal. We advise Altering your configuration to Adhere to the new v2 https://cloudflare-free-ssl01110.mpeblog.com/49783969/helping-the-others-realize-the-advantages-of-magento-2-migration