Len Conrad put forth on 3/4/2010 6:40 AM:

> But we don't have a relayhost for the sender [email protected].  We want 
> that trusted sender to bypass the (scanning, weak) relayhost and nexthop to 
> Internet. 
> 
> in the sender_dependent postfix box, 
> 
> relayhost = [mx.domain.tld]
> 
> sender_dependent_relayhost_maps =
>  sender_dependent_relayhost.map
> 
> ... which would contain what, the "null next hop"?
> 
> [email protected] smtp:

It would be of the form

[email protected] smtp:10.1.2.3

10.1.2.3 being the new/big Postfix box you mentioned wanting to send this
list mail through.

But upon further reading, I'm not sure if you need that, or

sender_dependent_default_transport_maps

I'm pretty sure one of these two is what you need.  One of the experts will
jump in shortly with the definitive answer (I hope/assume).

-- 
Stan

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