On Tue, Mar 24, 2009 at 04:46:06PM +0700, ke...@auditsi.com wrote:

> Hi list,
>
> I set 2 postfix instances, one with amavisd-new, the other with no 
> conten-filter at all.
> I'm using fallback_relay to the 2nd instance.
>
> I upgrade my clamav today so there is an error in my conten-filter for a 
> moment, the mail then relayed to the 2nd instance.
>
> my question is, if some process (not because upgrading) in my 
> content-filter error, the mail then will be relayed to the 2nd instance 
> with no filter at all?
> Is there option to control it for temporary?

Use a separate transport (not "smtp") for sending mail to the filter,
and in master.cf set:

    master.cf:
        scan unix ... smtp
            -o smtp_fallback_relay=$pre_filter_fback_relay
        scan unix ... smtp
            -o smtp_fallback_relay=$post_filter_fback_relay

    main.cf:
        pre_filter_fback_relay=
        post_filter_fback_relay=[fallback.example.com]

-- 
        Viktor.

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