OSEC

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Re: Auto-responders and distribution lists

From: mouss (moussnetoyen.net)
Date: Mon Mar 10 2008 - 15:00:22 CDT


Bud Cookson wrote:
> I have a situation where I was just moved from a qmail
> server to a Postfix server on a shared hosting server. The
> behaviour of email auto-response has changed in a negative
> manner as a result of this move. Let me explain.
>
> I have an email account xdomain.com
> <BLOCKED::mailto:xdomain.com> which does not store emails
> but forwards them to a list of destination accounts. Some
> of these are on the same server and others are on different
> servers. One or more of the destination accounts has an
> auto-responder configured. When an email comes in from
> YOtherDomain.com and is forwarded to the account with the
> auto-responder (which is on the same server), the
> auto-responder now responds to the forwarding account
> (xdomain.com) rather than the original sender of the email
> (YOtherDomain.com).

broken autoresponder?

> This is different than the previous
> implementation with qmail.
>
> Now, the question. I am being told that this is the design
> of Postfix and that it can't be changed. However, I believe
> it is because the auto-responder is being mis-configured. I
> would very much appreciate your thoughts on which of these
> statements is correct.
>
you did not say how you call the autoresponder and what autoresponder it
is.

note that a good responder should not respond if it is not certain that
the mailbox owner is an intended recipient (generally by checking that
the mailbox owner is listed in the To/Cc header).