[qmailtoaster] Clarification with tcp.smtp entry

Dear List, In my newly installed qmailtoaster box, i found a parameter NOP0FCHECK=1 In both the lines of /etc/tcprules.d/tcp.smtp. What does it mean? In the http://wiki.qmailtoaster.com/index.php/Tcp.smtp page also i cant get the exact meaning. Someone plz help me to understand

Re: [qmailtoaster] Clarification with tcp.smtp entry

senthil vel wrote: Dear List, In my newly installed qmailtoaster box, i found a parameter NOP0FCHECK=1 In both the lines of /etc/tcprules.d/tcp.smtp. What does it mean? In the http://wiki.qmailtoaster.com/index.php/Tcp.smtp page also i cant get the exact meaning. Someone plz help me