I need to allow to send mails throw my Postfix SMTP server only for users from mynetwork with valid SMTP authentication. But I can't understand how to combine two permissions in smtp_recipient_restriction options: permit_mynetworks and permit_sasl_authenticated.
If I write smtp_recipient_restriction = permit_mynetworks permit_sasl_authenticated then both clients from my network and clients with valid password can send mails, because in fact this permissions concatenated with OR operator. How can I concatenate it with AND operator? I need AND not only for this situation, but also for group permit_sasl_authenticated and permit_tls_clientcerts in another server etc.