KSMG IP V6 Error
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https://support.atomicorp.com/hc/en-us/articles/4404699199643-How-to-force-Force-postfix-to-use-only-IPv4 How to force Force postfix to use only IPv4 Frank Iacovino 8 months ago Updated These are the steps to Force postfix to use only IPv4 1. Edit the main postfix configuration file (main.cf) vi /etc/postfix/main.cf 2. Change inet_protocols setting from inet_protocols = all to inet_protocols = ipv4 3. Restart the postfix service by using the following command. service postfix restart Postfix is now configured to use IPv4 only.