if err = l.LDAP.LookupBind(conn); err != nil {
		return nil, err
	}

	// Evaluate the filter again with generic wildcard instead of specific values
	filter := strings.ReplaceAll(l.LDAP.UserDNSearchFilter, "%s", "*")

	nonExistentUsers := []string{}
	for _, dn := range userDistNames {
		searchRequest := ldap.NewSearchRequest(
			dn,
			ldap.ScopeBaseObject, ldap.NeverDerefAliases, 0, 0, false,
			filter,