# Download maildrop

Optionally download and install the Courier™ Authentication Library from `https://www.courier-mta.org/authlib/`, in order to use LDAP, MySQL, or PostgreSQL based mail authentication.

Follow the instructions in the `INSTALL` file to compile and install maildrop from source. If you are using an RPM-based Linux distribution, see the README file for instructions on building binary RPMs.

Download maildrop: `https://www.courier-mta.org/download.html#maildrop`