Re: [exim] Remote shadow transport

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Author: Christian Balzer
Date:  
To: exim-users
Subject: Re: [exim] Remote shadow transport

Hello Graeme,

On Mon, 03 Aug 2009 14:18:36 +0100 Graeme Fowler wrote:

> On Mon, 2009-08-03 at 16:44 +0900, Christian Balzer wrote:
> > So how do people keep a backup (meaning only mails that actually got a
> > final delivery, splitting things off earlier is trivial of course) of
> > incoming mails on a remote server then?
>
> I guess this depends upon what you define as "final delivery", doesn't
> it? Do you mean:
>
> A. Only take a backup copy of a message once it has successfully
> completed delivery into a user's mailbox, or


That's the one. Thus me staring (vainly) at the shadow transport, since
it would guarantee that.

I need a precise backup for things like SOX and also to avoid people
whining about finding a mail in their archive which they never saw in
their actual mailbox (because it was full at the time for example).

[dual router with unseen]
> It's not a great stretch of logic to change the transport to be a remote
> one.
>

Ayup, or in my case I could do this even further upstream on the MX. Alas
it is not what I want/need.

> I guess you could invert the sequence, and make the *actual* delivery
> "unseen" and then do the remote one but that would make error handling
> more difficult.
>

Guess "more difficult" is putting it mildly. ;)

I wonder if I could deliver it locally with a shadow transport to a place
that in turn triggers a remote delivery via .forward file or some such?

Regards,

Christian
-- 
Christian Balzer        Network/Systems Engineer                NOC
chibi@???       Global OnLine Japan/Fusion Network Services
http://www.gol.com/
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