An AAAA record is an IP address in the freshly introduced IPv6 format and it comprises of 8 groups of hexadecimal digits, as opposed to the IPv4 IPs, which feature four sets of numbers between 1 and 255. A good example 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. Every domain name has its website hosting server IP address as a record and in essence, this record informs the domain address where the Internet site for it is. Depending on the system the company uses, the record is going to be called A (IPv4) or AAAA (IPv6). Changing this record permits you to host your website with one company and your email messages with a different one, so if you decide to use this kind of redirection to point a domain address to a server that uses an IPv6 address, you'll have to set up an AAAA record for it.