whitelist

See Documentation Chapter 4.5.8
All SMTP checks are disabled for those entries (e. g. Greylisting, SPF, RBL, …)
 
I'm having problems with valid emails falling into bracklist

Mar 9 13:33:58 security postfix/postscreen[14042]: NOQUEUE: reject: RCPT from [201.76.49.242]:13669: 550 5.7.1 Service unavailable; client [201.76.49.242] blocked using dyna.spamrats.com; from=<marcus@jmprepres.com>, to=<fabio.compras@coelhodistribuidor.com.br>, proto=ESMTP, helo=<hm1481-30.locaweb.com.br>