From: Noel Jones (njonesmegan.vbhcs.org)
Date: Fri Jun 01 2007 - 13:11:49 CDT

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At 11:57 PM 5/31/2007, ram wrote:
> > relay_recipient_maps (default: empty)
> > Optional lookup tables with all valid
> addresses in the domains that
> > match $relay_domains. Specify domain as a wild-card for
> domains that
> > have no valid recipient list, and become a source of
> backscatter mail:
> > Postfix accepts spam for non-existent recipients and then
> floods inno-
> > cent people with undeliverable mail. Technically,
> tables listed with
> > $relay_recipient_maps are used as lists: Postfix needs to
> know only if
> > a lookup string is found or not, BUT IT DOES NOT
> USE THE RESULT FROM
> > TABLE LOOKUP.
> >
>
>right , but that does not tell me how can I have relay_recipient_maps
>for different domains
>
>can I say
>for domain1 use map1
>for domain2 use map2

There can only be one relay_recipient_maps parameter in main.cf.
Postfix expects all recipients for all relay domains to be listed in
the single relay_recipient_maps parameter. The relay_recipient_maps
parameter can have multiple maps listed, or all recipients can be
lumped together. Postfix searches all the defined maps in the order
listed until the first match is found.

It is not possible and not necessary to define which domain should
use which map. If you have a large number of domains as separate
maps, combine them into a single map for this lookup. Use a Makefile
to control the process, something like:
http://www.postfix.org/DATABASE_README.html#safe_db

--
Noel Jones

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