Nguyen Nang Thang:
> >> > domain zen.spamhaus.org as 127.0.0.4
> >> > Jan 22 00:00:53 spike postfix/postscreen[44350]: PREGREET 16 after 0.69
> >> > from
> >> > [177.231.207.212]:38026: HELO bryozoann\r\n
> >
> > That is a zombie that speaks before its turn.
>
> Ok, I'm clear about the operation of the parameter "postscreen_greet_wait".
> Log in our email system shows as below:
> Jan 22 00:57:59 gw postfix/postscreen[4837]: CONNECT from
> [201.139.132.41]:37245 to [192.168.100.79]:25
> Jan 22 00:57:59 gw postfix/postscreen[4837]: PREGREET 50 after 0.52 from
> [201.139.132.41]:37245: HELO 201.139.132.41.cable.dyn.cableonline.com.mx\r\n
> => The IP 201.139.132.41 is monitored by Pregreeting test.
>
> But my current concern is that how to manually test the parameter
> "postscreen_greet_wait" by my own test?
Postfix sends:
220-myhostname ESMTP
Postfix waits $postscreen_greet_wait seconds.
Bad SMTP clients will greet before $postscreen_greet_wait seconds
have passed.
220 myhostname ESMTP
Good SMTP clients will greet now.
Wietse
