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Subject: Re: qmail, from bugtraq
From: Irwan Hadi (irwanhadiiname.com)
Date: Sat Feb 05 2000 - 13:09:41 CST

At 23:56 06/02/2000 +0100, Rask Ingemann Lambertsen wrote:
> Really? Watch what happens with the bounce message. Qmail immediately
>tries to deliver it. Oh rats, we're (still) out of memory, so this one
>bounces too. We now have a double bounce which qmail tries to send to the
>address configured for double bounce delivery. With the system still out of
>memory, the double bounce also bounces, at which point qmail gives up on it
>and calls unlink(). The message has now been lost.
>
Yes, it;s true. I have the same experience with that.
A few days ago, I sent a letter to someone. Her mail server is using qmail
as the MTA. Did you know what happens next ? as written above. The error
messages were generated more than 10 times to my address, but I only sent
to her _one_ letter.

Now I'm know what actually has happened there, because this was the first
time I got bounce so many by only sending ONCE message.

First I thought that the mailserver at her place did looping, but actually
qmail automatically add deliver-to: on the header to prevent such looping.
So the only possibility this could be happened is as your email.

PS: BTW could postfix deliver to maildir format, or should I use other
program like procmail to deliver mails to maildir format ?, and could I use
qmail add ons, like daemon tools on postfix ?, especially the tcpserver and
cyclog.

> Alternatively, the bounces do get delivered to your automatic mailing
>list manager which then unsubscribes half of your subscribers. How nice.
>
>Regards,
>
>/ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻTŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ\
>| Rask Ingemann Lambertsen | E-mail: mailto:raskkampsax.dtu.dk |
>| Please do NOT Cc: to me or the | WWW: http://www.gbar.dtu.dk/~c948374/ |
>| mailing list. I am on the list.| "ThrustMe" on XPilot, ARCnet and IRC |
>| Linux is like a wigwam - no windows, no gates, apache inside! |
>
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