read-receipts & duplicate delivery suppression

[Henrique de Moraes Holschuh]

On Thu, 12 Jun 2003, Stephen Grier wrote:
> third party returned the read-receipt. It seems that when the third
> party then replied to the original message, lmtpd suppressed it because
> it contained a message-id identical to the one on the read-receipt sent

[...]

> non-standard, so I don't know if the client which did this, MS Outlook,
> Build 10.0.3416, behaved sensibly or not. We may have to disable
> duplicate delivery suppression if this is likely to happen again.

Disable MS Outlook Build 10.0.3416 instead.  Duplicating msgids is
EXTREMELY unacceptable.  Or you could tell your MTA to kill all msgids
coming from MS Outlook Build 10.0.3416 and regen it.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh