mysql_sender_login_maps.cf ?

[sence123]

Howdi!

i wanna use login sender mismatch, to restrict some spam, which is passing the system....

the only Database .cf which i think is able to handle this, is mysql_virtual-mailboxes.cf but it doesent work with it.

how do i have to implement it?

Part1)
smtpd_sender_restrictions = check_sender_access mysql:/etc/postfix/mysql-virtual_sender.cf, reject_non_fqdn_sender, reject_sender_login_mismatch

Part2)
smtpd_sender_login_maps = mysql:/etc/postfix/mysql-virtual_mailboxes.cf

but this .cf isnīt the right for this.

Which i have to use, or how do i have to write the .cf file ?

thanks a lot!