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From: Victor.Duchovnimorganstanley.com
Date: Thu May 09 2002 - 13:31:51 CDT

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    On Thu, 9 May 2002, Mark Martinec wrote:

    > Victor.Duchovnimorganstanley.com:
    > > To get high throughput via a content_filter that is low_latency (runs
    > > locally) but low concurrency (uses lots of CPU) one needs to avoid DNS
    > > lookups in the sending "smtp"
    >
    > Are dns lookups performed by smtp even if supplied with IP address in its
    > destination address, e.g.: 'content_filter = scan:[127.0.0.1]:10024' ???

    Yes, because the dns lookups are canonicalizing the domain part of
    the envelope sender and recipient addresses (in addition to MX lookups on
    the nexthop which can be disabled with []). 

    -- 
	Viktor.

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