From: Noel Jones (njonesmegan.vbhcs.org)
Date: Mon Apr 16 2007 - 07:57:18 CDT

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At 06:40 AM 4/16/2007, Neil Wilson wrote:
>>>> It is typically unwise to set local_recipient_maps to an empty value.
>
>Thanks, why is this unwise, all of my mail is going to Scalix via a
>transport, and I'm using virtual_alias_maps for my aliases?

Because your postfix will accept mail for unknown recipients, causing
postfix or your internal MTA to bounce the undeliverables. This
makes you a backscatter source, may get you blacklisted by others,
makes you a spam attractor, delays legit mail, and may overload your
postfix queue.

>>>>transport_maps = hash:/etc/postfix/transport
>>>>
>>>
>>>The possible existence of a transport table has no effect on smtpd's
>>>evaluation of restrictions.
>
>I'm using an identical main.cf on another server that the
>restrictions are working on, the only difference is that the one
>that is working has local users, and then one that isn't working
>sends it's mail to Scalix via a transport.
>
>Perhaps I've made another silly mistake, but I just can't seem to find it.
>
>Some of my main.cf is below in case someone can see something that I
>keep missing, this is NOT my complete main.cf

No one will be able to help without complete information, including
complete "postconf -n" output, definitions of your
smtpd_restrictions_classes and the tables they use, and unaltered log
entries showing the problem.

--
Noel Jones

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