Postal still supports the version one (or legacy) configuration structure from Postal v2 and earlier. When you are utilizing this config file, you will get a warning from the logs when starting off Postal. We endorse Altering your configuration to Stick to the new v2 format which happens to https://postalsmtpsetup99998.thezenweb.com/5-simple-statements-about-ispconfig-support-explained-64472919