Hi all,
I've used Postfix/Postcreen to protect zombies/spambots to our email system.
Currently, I've setup the pregreet test of Postscreen as configuration below:
In main.cf:
postscreen_access_list = permit_mynetworks,
cidr:/etc/postfix/postscreen_access.cidr
postscreen_blacklist_action = enforce
postscreen_dnsbl_threshold = 3
postscreen_dnsbl_sites =
zen.spamhaus.org*3
bl.mailspike.net*3
b.barracudacentral.org*2
postscreen_dnsbl_action = enforce
postscreen_dnsbl_ttl = 1h
postscreen_greet_banner = $smtpd_banner
postscreen_greet_wait = 6s
postscreen_greet_action = enforce
I donot know how to demonstrate the test "postscreen_greet_wait" to know that
Postscreen is protecting zombies/spambots that speak before its turn.
Any tools or ways for this test?
Regards,
Thang
