An AAAA record is an IP in the freshly launched IPv6 format and it is made up of eight sets of hexadecimal digits, in contrast to the IPv4 IPs, which feature 4 sets of digits in between 1 and 255. An illustration of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and in this format the sheer number of IPs that could be created is many times larger than the number of the IPv4 addresses. Each domain name has its website hosting server Internet protocol as a record and in essence, this record tells the domain name where the site for it can be found. Depending on the system the company uses, the record is going to be called A (IPv4) or AAAA (IPv6). Changing this record will allow you to host your site with one company and your emails with another, so if you decide to use this sort of redirection to forward a domain name to a server that uses an IPv6 address, you will need to create an AAAA record for it.