Hello,
But I need to do, and I am not talking about Internet email. Some systems use SMTP for message traffic and they don't understand bounce messages. They have strict access lists where messages can originate, and they need to have their own protocol over it.
And best of it, some organizations have standardized this as a world wide standard. And yes, it is widely adopted.
So to use Exim as a relay, I need to rewrite bounces to be originating from other end of the 'M2M' link (information is on original message which caused the bounce), I'd like to have a comment about my previous message how to do it. And rewrite should be done at Envelope-level (SMTP/MAIL FROM).
If you know an answer to this question and don't want to announce it to a exim-users lists, I'd appreciate if you can contact me directly.
Best regards, Jori Hämäläinen
-----Original Message-----
From: David Woodhouse [
mailto:dwmw2@infradead.org]
Sent: 24. huhtikuuta 2004 7:02
To: Hämäläinen Jori
Cc: exim-users@???
Subject: Re: [Exim] Exim generated bounce-addr rewrite
On Fri, 2004-04-23 at 15:13 +0300, Hämäläinen Jori wrote:
> I need to rewrite empty sender (exim generated bounce) to a valid email address.
Do not do this. Bounces have an empty reverse path for a _reason_ -- to
prevent mail loops. To do otherwise is a dangerous violation of RFC2821
and a denial of service attack waiting to happen.
Failure to follow RFC2821 (and common sense) on this matter will get you
reported to the abuse department at your network provider for deliberate
and dangerous network abuse.
If you want help, describe the original problem you're trying to solve,
because what you envisage as the 'solution' is not correct.
--
dwmw2
