Postal nevertheless supports the version 1 (or legacy) configuration structure from Postal v2 and before. In case you are making use of this config file, you might get a warning within the logs when starting up Postal. We suggest Altering your configuration to Keep to the new v2 structure https://whmcs-migration44433.blog-eye.com/26888255/5-essential-elements-for-red-hat-virtualization-install