An AAAA record is an Internet protocol address within the recently released IPv6 format and it consists of eight different groups of hexadecimal digits, as opposed to the IPv4 IPs, that include 4 sets of numbers in between 1 and 255. An example of an IPv6 address would be 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and with this format the number of IPs which can be created is many times larger than the number of the IPv4 addresses. Each domain has its hosting server Internet protocol address as a record and in essence, this record informs the domain address where the site for it is. Depending on the system the provider employs, the record will be called A (IPv4) or AAAA (IPv6). Changing this record will allow you to host your site with one company and your email messages with a different one, so if you choose to use this type of redirection to forward a domain address to a server that uses an IPv6 address, you'll need to set up an AAAA record for it.