RE: [exim] relay and final rejection for exchange org.

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Autor: Hancock, Scott
Datum:  
To: exim-users
Betreff: RE: [exim] relay and final rejection for exchange org.
Please disregard that last email. I hit a shortcut for send.

Exch1 = exchange server 1
Exch2 = exchange server 2

Incoming SMTP => sends to =>
=> Exim1 (clean email then relay, no local users) => send to =>
=> Exch1 (user not here send to Exch2) => send to =>
=> Exch2 (user not here either send to final exim) => send to =>
=> FinalExim (exim accepts mail but no local users for shared smtp
domain, reject mail)


That is the mail flow I'm trying to achieve. I think it is straight
forward if I has another mail server.

I'm trying to functionally make Exim1 be FinalExim based on if the mail
came from Exch2 and its destined for the shared SMTP name space.

I hope that helps.

I think you're suggesting put Exim in the middle of the exchange servers
with a list of local users. I think that might be possible too but I
was hoping to work it this way if possible. I'm leaving out a bunch of
people issues associated with this migration. I'm not the only one
involved. It is very likely a person would be moved or created without
the list being updated properly. I could batch the whole thing but this
termination point seems to avoid all that.

Thanks,

Scott



> -----Original Message-----
> From: fanf2@??? [mailto:fanf2@hermes.cam.ac.uk]
> On Behalf Of Tony Finch
> Sent: Monday, August 08, 2005 2:58 PM
> To: Hancock, Scott
> Cc: exim-users@???
> Subject: RE: [exim] relay and final rejection for exchange org.
>
> On Mon, 8 Aug 2005, Hancock, Scott wrote:
>
> > Its not clear to me how that would prevent mail loops
> caused by mail
> > originating inside the organization and allow traffic
> between them.
> > Are you suggesting two lists defining who is on which exchange box?
>
> Yes, if that's your topology. You didn't explain it clearly before.
> AFAICT from your vague explanation, the Exchange servers
> don't know which addresses are valid so send everything to
> the Exim machine. Something needs to know the list of valid
> addresses, and since Exchange doesn't it'll have to be Exim.
> Alternatively you might be able to do it by querying the AD:
> see
> http://www.exim.org/pipermail/exim-users/Week-of-Mon-20040816/

075152.html
>
> Tony.
> --
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>
>