This is the saslauthd module.

You can manage saslauthd on Debian like systems.

 class {
  'saslauthd':
    version => latest;
 }


If you set mechanisms to 'ldap' you can configure the saslauthd.conf parameters:

 class {
  'saslauthd':
     mechanisms         => 'ldap',
     ldap_auth_method   => 'custom',
     ldap_bind_dn       => 'cn=admin',
     ldap_bind_pw       => 'xyz',
     ldap_filter        => '(uid=%u)',
     ldap_search_base   => 'ou=people',
     ldap_servers       => 'ldap://localhost/',
     ldap_version       => '3',
  }

To not start saslauthd use:

 class {
  'saslauthd':
    start  => 'no'
  }

You can set many other parameters, have a look at the init.pp file.