RE: Welcome to the Disconnected SMTP mailing list

[Mike Byrns <mike.byrns@xxxxxxxxxx>]

I'm no 
expert on the nuances of Sendmail 8 configuration 
but I can't find anywhere how a host can 
be made not to make use of the ETRN functionality. 
 In fact I can't see how ETRN can be disabled 
without disabling the -qR argument.  Note 
the following from the 8.8.5 release notes:

Implement 
ESMTP ETRN command to flush the queue for 
a specific host.
		The command takes a 
host name; data for that host is
		immediately 
(and asynchronously) flushed.  Because this 
shares
		the -qR implementation, other 
hosts may be attempted, but
		there should 
be no security implications.  Implementation
		from 
John Beck of InReference, Inc.  See RFC 
1985 for details.

The release notes 
also indicate that half a dozen or so ETRN-related 
bugs have been reported by outside sources 
and fixed since ETRN support was added. 
 I understand that this is not a large number 
compared to the total number of bugs fixed 
but I think it does indicate that a non-trivial 
number of sites have recognized the new 
feature and have exercised it sufficiently 
to uncover these relatively subtle defects.
 
Doug Strauss (Exchange) wrote:
>No offense Mike, but I 
believe this number was skewed based on 
most of
>the hosts running the newer 
versions of Sendmail and not actually making
>use 
of the ETRN functionality.