An AAAA record is an IP address in the freshly released IPv6 format and it consists of 8 sets of hexadecimal digits, unlike the IPv4 IPs, which include four groups of digits between 1 and 255. A good example of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and with this format the sheer number of IPs that may be created is many times greater than the number of the IPv4 addresses. Every single domain name has its hosting server Internet protocol as a record and in essence, this unique record tells the domain address where the website for it can be found. Depending on the system the company uses, the record will be called A (IPv4) or AAAA (IPv6). Changing this record will allow you to host your site with one provider and your email messages with a different one, 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.