delivery to hotmail - closing connection prematurely

[Omar <omar @ westside . urbanblight . com>]

Hi,

I'm seeing an unusual number of not-quite-complete connections when
delivering to hotmail, causing our MTA to re-queue the message.  The
subscriber is getting duplicates because of this.  For those of you
familiar with qmail, here's a typical log entry:

Oct  3 09:12:04 h01 qmail: 1065186724.676195 delivery 37903571: deferral: Connected_to_65.54.252.99_but_connection_died._Possible_duplicate!_(#4.4.2)/

This basically means that our MTA didn't receive the final confirmation
from hotmail that the message was delivered, and so puts it back in the
queue for re-try later.

Is anyone else seeing this?

Omar