Hello, qmail is using (most) tcpserver to accept connections, so read this http://cr.yp.to/ucspi-tcp/tcprules.html
your case is x.y.z.3:deny eg smtp connection from x.y.z.3 is dropped 2007/6/3, Kubilay Akyol (Radore Telekom) <[EMAIL PROTECTED]>:
Hi Guys, I wonder if I can do a filter like below in qmail or other 3th party add-in. Let's say we have a user in qmail [EMAIL PROTECTED] Client1 connect to our mail server and get smtp auth and send email from [EMAIL PROTECTED] Client2 connect to our mail server and send a email for [EMAIL PROTECTED] from XYZ. (Spam mail) Let's say Client1 and Client2 both have adsl connection and their IP addresses are x.y.z.2 and x.y.z.3 What I want to do is block Client2 to connect smtp port 25 or filter in qmail, while give Access to Client1 to send mail. Assume that they don't have static adsl IPS. What can I do? Thanks. Zeki Kubilay Akyol CEO - MCSE Radore Hosting Telekomünikasyon Hizm. San. ve Tic. Ltd. Şti. [EMAIL PROTECTED] / www.rh.com.tr t : + 90 212 347 2 347
