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RE: Welcome to the Disconnected SMTP mailing list
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:
ESMTP ETRN command to flush the queue for
a specific host.
The command takes a
host name; data for that host is
(and asynchronously) flushed. Because this
the -qR implementation, other
hosts may be attempted, but
be no security implications. Implementation
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
>the hosts running the newer
versions of Sendmail and not actually making
of the ETRN functionality.