Marky Yehezkiel (SNC) <[EMAIL PROTECTED]> wrote: > I just wondering is there any way in postfix that can check port 25 of > sender is open or not. > > Commonly I got spam where the sender IP address are not open for port 25 > such as :
[...] > I want to make policy If source IP 190.26.129.204 and 90.183.38.135 with > port 25 is not open then postfix will reject the email. > > Can any one help me how to set it up on postfix please? This is not a good idea. A user on this site received email from [EMAIL PROTECTED] today; the connecting server was ug-out-1314.google.com, to which you cannot connect on port 25. -- Sahil Tandon <[EMAIL PROTECTED]>
