From: Magnus Bäck (magnusdsek.lth.se)
Date: Mon Jan 03 2005 - 12:11:54 CST

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On Monday, January 03, 2005 at 17:47 CET,
     David Hill <davidhwmis.net> wrote:

> We currently use the Postini filtering service.
>
> If a user has requested to use the service, we alias the email address
> so it forwards to postini servers.
>
> For example
> virtual_alias_maps
> ---------
> daviddomain.com davidpostini.domain.com
>
> host -t mx postini.domain.com resolves to 4 postini MX's.
>
> That works fine.
>
> I tried to get rid of the alias_maps and just change to per-user transports
>
> transport_maps
> daviddomain.com smtp:postini.domain.com
>
> Postini accepts it, but bounces it saying 554 Too many hops.
>
> Any idea what is going on? I setup a test to forward the email to
> another server here, and it shows the correct number of Hops (source,
> our mail server, transport)
>
> Why is it too many hops?

Because your configuration causes the message to loop; the two servers
will send the message to each other and none will consider itself to be
the final destination. Your logs will give clues about the reason for
the loop.

What does Postini do with scanned messages? Send them back to Postfix?

--
Magnus Bäck
magnusdsek.lth.se

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