Re: [Exim] Preventing Mail Loops with autoreplies, MTA on th…

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Autor: Philip Hazel
Fecha:  
A: Marc Haber
Cc: exim-users
Asunto: Re: [Exim] Preventing Mail Loops with autoreplies, MTA on the other side broken?
On Wed, 1 Mar 2000, Marc Haber wrote:

> I have an old account at a site running PP. Let that account's e-mail
> address be o@othersite. I have set up a .mailfilter that forwards
> incoming e-mail to a-othersite@mysite which is in turn locally aliased
> to a@mysite where the mail is finally delivered.


Forwarders that generate new messages instead of just forwarding the old
one are always in danger of creating mail loops.

> |From: postmaster@mysite
> |To: o@othersite
> |Subject: Test
> |Date: Wed, 1 Mar 2000 17:33:22 +0000
> |Message-ID: <created-by@othersite>
> |Resent-Date: Wed, 1 Mar 2000 18:33:24 +0100
> |Resent-From: o@othersite
> |Resent-To: a-othersite@mysite
> |Resent-Message-Id: <original>


> Given that the original message's sender was postmaster@mysite, why
> was the auto reply not sent to postmaster@mysite but rather to
> o@otherside which supposedly is the envelope on the redirected
> message? The docs say that if I omit to in a mail command, the
> autoreply is sent to $reply_address which is either $from or
> $reply-to.


The docs forget to say that Resent- headers override.

-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.