sasldblistusers2 - list users in sasldb
sasldblistusers2 [-f file] [-v]
sasldblistusers2 is used to list the users in the SASL password database (usually /etc/sasldb2). This will NOT list all the users in /etc/passwd, shadow, PAM, etc. only those created by SASL (via saslpasswd2).
-f file use file for sasldb -v Print libsasl2 version number and exit.
saslpasswd2(8) rfc2222 - Simple Authentication and Security Layer (SASL)