An AAAA record is an IP address in the freshly introduced IPv6 format and it comprises of eight different groups of hexadecimal digits, as opposed to the IPv4 IPs, that include four groups of numbers in between 1 and 255. An example of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and with this format the total number of IPs that can be created is many times higher than the number of the IPv4 addresses. Each and every domain name has its hosting server IP address as a record and in essence, this record informs the domain where the Internet site for it is located. Depending on the system that the company uses, the record will be called A (IPv4) or AAAA (IPv6). Changing this record permits you to host your site with one provider and your email messages with a different one, so if you choose to use such a 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.