From: Magnus Bäck (magnusdsek.lth.se)
Date: Tue Jul 26 2005 - 16:34:36 CDT

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On Tuesday, July 26, 2005 at 23:29 CEST,
     Christian Joergensen <mailrazor.dk> wrote:

> On Tue, 2005-07-26 at 18:21 -0300, Marcos Mendonça wrote:
>
> > Anyother way i could add the info i want to the sendmail log?
>
> What about using another approach and deliver the mail with smtp to
> localhost? Then you will get the queue-id to do your matching in the
> mail.log.

That's another way, but it is not without drawbacks:

   * Postfix must be running. If the application attempts to send a
     message during one of the short periods where Postfix is down (a
     restart or similar) the application must deal with that in a
     graceful manner.
   * Unless the system is seriously hosed, messages submitted with
     sendmail(1) are always accepted. If there is a problem, the message
     is bounced. This is very convenient for automated systems that send
     mail without user supervision. SMTP submissions puts much higher
     requirements on the application and its SMTP client.

However, SMTP submission is faster so if performance is of the essence
SMTP might still be preferable.

--
Magnus Bäck
magnusdsek.lth.se

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