[svn:qpsmtpd] rev 534 - trunk/plugins

Author: aqua
Date: Sat Jul 30 00:19:17 2005
New Revision: 534

Modified:
   trunk/plugins/check_earlytalker
Log:
Add a caution about using large wait times in check_earlytalker; some
superficial research suggests that some MTAs have unexpectedly short timeouts
waiting for SMTP greetings (default of 30sec for Exim4.5, most notably)


Modified: trunk/plugins/check_earlytalker
==============================================================================
--- trunk/plugins/check_earlytalker	(original)
+++ trunk/plugins/check_earlytalker	Sat Jul 30 00:19:17 2005
@@ -20,7 +20,11 @@ on all mail/rcpt commands in the transac
 =item wait [integer]
 
 The number of seconds to delay the initial greeting to see if the connecting
-host speaks first.  The default is 1.
+host speaks first.  The default is 1.  Do not select a value that is too high,
+or you may be unable to receive mail from MTAs with short SMTP connect or
+greeting timeouts -- these are known to range as low as 30 seconds, and may
+in some cases be configured lower by mailserver admins.  Network transit time
+must also be allowed for.
 
 =item action [string: deny, denysoft, log]