man sasldblistusers2 (Administration système) - list users in sasldb
NAME
sasldblistusers - list users in sasldb
SYNOPSIS
sasldblistusers
DESCRIPTION
sasldblistusers is used to list the users in the SASL password database (usually /etc/sasldb). This will NOT list all the users in /etc/passwd, shadow, PAM, etc. only those created by SASL (via saslpasswd).