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# (yes) (yes) (yes) (never) (100)
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# =============================================================
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filter unix - n n - 10 pipe
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<p> This runs up to 10 content filters in parallel. Instead of a
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limit of 10 concurrent processes, use whatever process limit is
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feasible for your machine. Content inspection software can gobble
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up a lot of system resources, so you don't want to have too much
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<li> <p> To turn on content filtering for mail arriving via SMTP
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only, append "-o <a href="postconf.5.html#content_filter">content_filter</a>=filter:dummy" to the <a href="master.5.html">master.cf</a>