non-existent msgids & duplicate delivery suppression

Henrique de Moraes Holschuh hmh at
Fri Jun 27 12:14:51 EDT 2003

On Fri, 27 Jun 2003, Stephen Grier wrote:
> Yes, the messages do have a Message-Id: header with an empty value. I've
> identified 2 domains which appear to be doing this.
> Would it be reasonable to have lmtpd not add an entry to the deliver db
> for zero-length message-ids?

It would be reasonable for lmtpd to reject delivering such crap with a 5xx
error.  Empty message-id are NOT acceptable anywhere in the email
transmission chain.

  "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

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