2011/11/26 Wietse Venema <wie...@porcupine.org>:
> Vincenzo Romano:
>> 2011/11/25 Wietse Venema <wie...@porcupine.org>:
>> > The Postfix sendmail command creates a temporary queue file that
>> > is deleted as soon as the local mail pickup daemon has read the
>> > file. So, that queue file ID is useless.
>> >
>> > You can specify your own envelope ID on the Postfix sendmail command
>> > line. This will be returned in delivery status notifications (as
>> > long as the remote MTA implements the DSN RFCs).
>> >
>> > Postfix does not log the DSN envelope ID information, but code for
>> > that could be added to the cleanup daemon.
>> >
>> > There is also RFC 3885 which builds a tracking mechanism on top of
>> > the aforementioned DSN envelope ID information. But this is of limited
>> > interest, since qmail, exim and some other MTAs don't implement DSN.
>>
>> Thanks Wietse (also for the honor).
>> Maybe I've been not clear enough and I apologyze for that.
>> I'll try to describe a real life case.
>> Once I do the submission with sendmail tool, I need to check on my
>> machine whether the message actually left the system for the delivery
>> (which can access the Internet) or if it got queued or trashed for
>> some reason.
>> As far as I remember I can link the various lines in the log only
>> thanks to the queue ID.
>> This is what I do, step by step, within the logs:
>>
>> 0. First restrict the search field to a "reasonable" time period in
>> the logs. Usually one day.
>>
>> 1. I look for "postfix/qmgr" and the destination email address to
>> extract che queue ID (something like 42DF66C96E).
>>
>> 2. I look then for both that queue ID and "postfix/smtp" in order to
>> extract the status (something like "status=sent") and the remote SMTP
>> response (something like "(250 2.0.0 OK 1322295987
>> b11si12544560fak.190)" ).
>>
>> 3. I look then for both that queue ID and "postfix/cleanup" in order
>> to extract the local message-ID (something like
>> "message-id=<20111126082624.42DF66C96E@system.domain>")
>>
>> The step #2 is needed in order to know whether the message actually
>> left the system (status=sent) or bounced or got deferred. I can also
>> get the actual response from the remore server.
>> Steps #2 and #3 are needed in order to be able to look for the message
>> on either side.
>>
>> The steps #0 and #1 are approximate, especially when I send several
>> distinct messages in the same second to the same destination. Which
>> can easily happen.
>> I understood that I cannot grab the local message ID straight from
>> sendmail, this is why I focused on the queue ID.
>>
>> But, is it possible to know the queue ID from the sendmail tool (or
>> whatever other submission tool) to be reasonably precise on the
>> subsequent email tracking lookups?
>
> I answered that in the FIRST paragraph of my reply.

You say it's useless, I say I can use it to retrieve the message IDs I need.
Is there a way to get the queue ID back from sendmail?

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