Re: built in content filtering

Robin Lynn Frank:
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> I checked the docs but did not see (or didn't recognize) the answer to
> the following:
>
> 1) What is the order of header and body checks (i.e., header first, body
> second)?

TABLE SEARCH ORDER
For each line of message input, the patterns are applied
in the order as specified in the table. When a pattern is
found that matches the input line, the corresponding
action is executed and then the next input line is
inspected.

> 2) If headers are checked first, is it possible to whitelist specific
> mail to avoid a body check?

BUGS
Many people overlook the main limitations of header and
body_checks rules. These rules operate on one logical
message header or one body line at a time, and a decision
made for one line is not carried over to the next line.

I think header_checks(5) says it all (the above text comes with
Postfix 2.1 and later).

Wietse