Quick question. I want to add a smart host to a new SMTP Connector that I created. Which of the three option will allow for the fastest delivery to the smart host?
1. Enter full fqdn of smart host. (E.g. mail.abc.com; This dns name has multiple A records)
2. Enter the fqdn of each hosts separately in the smart host field. (E.g. mx1.abc.com,mx2.abc.com)
3. Enter the IP address of each hosts separately in the smart host field. (E.g. [22.214.171.124][126.96.36.199])