I've been trying to understand the real difference between Cost and Priority in regards to DNS.
Example, if you have Round Robin setup, and you have 2 A records pointing to 2 different IP addresses, it'll split the load between them.
IF you have 2 different MX records, you can use cost or priority to have it utilize one server more than the other.
In the second case, what would the be difference between configuring cost or priority. Why would you configure one over the other?