bug#7789: cannot send smtpmail using gmail & tls on woe32

[Sam Steingold]

GNU Emacs 23.2.1 (i386-mingw-nt5.2.3790)
 of 2010-05-08 on G41R2F1
--with-gcc (3.4) --no-opt --cflags -Ic:/xpm/include

I followed the instructions on how to send smtp mail using emacs and gmail:
http://obfuscatedcode.wordpress.com/2007/04/26/configuring-emacs-for-gmails-smtp/
it works with the latest bzr emacs on ubuntu just fine, but does not
work on woe32.
first, it hangs forever with the message
Opening STARTTLS connection to `smtp.gmail.com:587'...done
and then it dies when the process times out:

Debugger entered--Lisp error: (error "Process SMTP not running")
  process-send-string(#<process SMTP> "EHLO SDS.SDS")
  smtpmail-send-command(#<process SMTP> "EHLO SDS.SDS")
  byte-code("....")
  smtpmail-via-smtp(("sds@gnu.org" "sds@gnu.org") #<buffer  smtpmail temp>)
  smtpmail-send-it()
  sds-send-mail()
  message-send-mail(nil)
  message-send-via-mail(nil)
  message-send(nil)
  message-send-and-exit(nil)
  call-interactively(message-send-and-exit nil nil)

(process-status process)
==> exit
-- 
Sam Steingold <http://sds.podval.org>