> Out of curiosity though: why is it like this? In order to have a pointer to what you actually want to have. MX points to a hostname. This hostname can have

> Out of curiosity though: why is it like this? In order to have a pointer to what you actually want to have. MX points to a hostname. This hostname can have many records including A, AAA, TXT, etc which are used by MTAs such as postfix and sendmail for delivery and verification. Also you'd have to make changes only in the hostname records which would affect all other records in the zone that point to it. Easier to maintain.