Working with Exchange

[Mark Presling]

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Jon Miller wrote:

>Do it on a domain level, we do this all the time and it works very well, you'll have to set up a relay_domains  for the  mail for the client.
>The way we've set it up is to accept on postfix -> mailscanner (spam and virus with Sophos) -> postfix -> domains.
>  
>
Doesn't Postfix just lookup the MX entries for the domain in 
relay_domains and send it on to the higher priority MX than itself? Do 
you have to run your own internal DNS that flips the MX entries?

What I mean is, if you have your server set up as the MX on the Internet 
DNS servers for somedomain.com (and not their own server), how do you 
use relay_domains feature of Postfix to forward it on to their server 
without DNS changes?

I have had a MS box in front of an Exchange server inside a LAN by using 
internal DNS, but haven't tried setting it up outside of the internal 
network.

I'm sorry this is getting away from the original question relating to 
Exim, but it is a similar problem and I am going to need to do exactly 
this in the coming weeks for a client.

Cheers,
Mark


>Jon
>
>Jon L. Miller,  ASE, CNS, CLS, MCNE, CCNA
>Director/Sr Systems Consultant
>MMT Networks Pty Ltd
>http://www.mmtnetworks.com.au
>Resellers for: Sophos Anti-Virus, Novell, Cisco, Swifdsl
>
>"I don't know the key to success, but the key to failure
> is trying to please everybody." -Bill Cosby
>
>
>
>  
>
>>>>chardlist at CHARD.NET 3:44:23 am 1/11/2005 >>>
>>>>        
>>>>
>I have a Redhat Linux server running MS for a bunch of virtual domains.
>Ultimately all mail is delivered to the appropriate POP account on the same
>server.  I have a client that would like to still utilize my MS services for
>spam and virus protection but instead of having POP accounts would now like
>all mail for their domain forwarded to their exchange server after MS has
>finished scanning it.  Basically a scan and forward service.
>
>What is the best way to accomplish this?
>
>I'm running
>
>Redhat 9
>MS 4.45.4
>Exim 4.52
>
>
>Thank you,
>-Brendan
>
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>  
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