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Re: [SOGo] Incremental Migration

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  • From: "Infoo Matic" < >
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  • Subject: Re: [SOGo] Incremental Migration
  • Date: Wed, 30 Sep 2015 23:36:10 +0200

I would use postfix as my main server. If postfix does not find a mail
address when looking up on the sogo server then it should relay to the
exchange server.
The exchange server uses postfix as relay: postfix decides again whether the
mail should be kept within the sogo server or should be relayed back to

Had a similar setup when I migrated a customer away from IBM Lotus Domino,
hope this helps.


On Wednesday, September 30, 2015 20:41 CEST, Gerald Brandt
< >

> Hi,
> I currently have a 2003 (NOT R2) exchange server. I have an almost
> working SOGo/Openchange install.
> I'd like to migrate my users over slowly. for example,
> goes to SOGo and
> goes to exchange. I can actually take
> care of incoming email quite easily, just a postfix server with rules
> for email addresses, no biggie.
> The problem is when
> sends email to
> .
> Normally, SOGo would look and say 'hey, this user doesn't exist'.
> Instead, I want it to forward all unknown domain emails to the exchange
> server. I'd love exchange to do the same, but have even less of an idea
> how to do that.
> Any ideas or comments from people that may have done an incremental
> migration?
> Gerald
> --

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