Postal nonetheless supports the version 1 (or legacy) configuration structure from Postal v2 and before. For anyone who is working with this config file, you will get a warning within the logs when starting Postal. We endorse Altering your configuration to Keep to the new v2 format which happens https://whmcsmigration55555.tribunablog.com/5-simple-statements-about-ispconfig-support-explained-40990790