From 0d6033094c887a09b7f519ae1340cbbffdb55b4f Mon Sep 17 00:00:00 2001
From: www-data
postscreen(8) maintains a temporary whitelist for clients that +pass its tests; by allowing whitelisted clients to skip tests, +postscreen(8) minimizes its impact on legitimate email traffic. +
+postscreen(8) should not be used on SMTP ports that receive mail from end-user clients (MUAs). In a typical deployment, postscreen(8) is used on the "port 25" service, while MUA clients @@ -121,10 +126,10 @@ and that is the problem that postscreen(8) is fo
The postscreen(8) triage process involves a number of tests, in the order as described below. Some tests introduce a delay of -a few seconds. Once a client passes a test, its IP address is -whitelisted from 24 hours for simple tests, to 1 week for complex -tests. Whitelisting minimizes the impact of postscreen(8)'s tests -on legitimate mail clients.
+a few seconds. postscreen(8) maintains a temporary whitelist for +clients that pass its tests; by allowing whitelisted clients to +skip tests, postscreen(8) minimizes its impact on legitimate email +traffic.By default, postscreen(8) hands off all connections to a Postfix SMTP server process after logging its findings. This mode is useful @@ -617,6 +622,10 @@ feature. unexpectedly, time seconds after the start of the test named test name.
+There is no punishment for hanging up. A client that hangs up +without sending the QUIT command can still pass all postscreen(8) +tests.
+