An AAAA record is an IP within the freshly presented IPv6 format and it is comprised of eight different groups of hexadecimal numbers, as opposed to the IPv4 IPs, which feature 4 groups of digits between 1 and 255. An example of an IPv6 address would be 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and in this format the amount of IPs that can be created is many times higher than the number of the IPv4 addresses. Every single domain has its hosting server IP address as a record and in essence, this unique record informs the domain name where the website for it can be found. Depending on the system which the service provider employs, the record will be called A (IPv4) or AAAA (IPv6). Changing this record allows you to host your website with one provider and your e-mails with another, so if you decide to use this type of redirection to point a domain name to a server that uses an IPv6 address, you'll need to set up an AAAA record for it.