# Aliases and Addresses Help

Exmh supports two different address books, you can use either or both. They are independent of each other. The two address books are:

- the MH Aliases list
- the exmh Address Database

MH Aliases, as the name implies, are a capability of the MH foundation upon which exmh is built and can be used with other MH tools. The exmh Address Database is supported solely within exmh.

## Main Help Index