Vanity URL, author configurable, once they configured we need to move this to Dispatcher/Akamai as a permanent solution. Instead of asking IT team, author can do directly vanity path. Am not sure, how i can achieve this.
As Kunal mentioned, you can use dispatcher 4.1.11 and above to configure the dispatcher to pull all the vanity URLs. If you want to push the same for the Akamai, then you may have to write a simple service to make an Akamai webservice call and push the same.