Hi all, I'm getting the following error: The email sample you submitted for xxxx[at]xxxx.com.au appears to traverse more than one domain. Please ensure that you configure each mailhost individually and in order. I have a backup MX record that a friend of mine is hosting. He relays his mail through his ISP, so it goes from his domain, into his ISP's domain, then to me. How am I able to setup mailhosts with this config?