SMTPD delay rejects evaluation

[Lefteris Tsintjelis]

I am trying to find more info about how delay rejects work and more 
specifically how they are evaluated in case of multiple rejections when 
delay rejects are on. Are all restrictions evaluated until RCPT TO in 
case of multiple rejects? Do some restrictions have priority over others 
if more than one rejection is found? Can the restriction order change in 
case of multiple rejections?

http://www.postfix.org/postconf.5.html#smtpd_delay_reject
http://www.postfix.org/SMTPD_ACCESS_README.html
I have found the above. Is there anything else I can look into?

Lefteris