Re: Clarification of square brackets in transport file please

From: Stephen Carter (no email)
Date: Sun Oct 02 2005 - 10:57:11 EDT

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    >>>Jorey Bump <> 10/02/05 1:58 pm >>>
    >For the same reason: To prevent an MX lookup on the provided string. In
    >the case of an IP address, it will fail.

    Thanks, sometimes it just takes another way of explaining it. So while
    I saw an IP address and host/domain name as separate in the sense of
    what they are, postfix sees them all as just 'strings', and that is how
    they are treated.

    Square brackets are in. I use an IP address so I assume the dns lookups
    occured, failed, then postfix just send e-mail to the IP. So the downside
    with not using brackets is the extra unnecessary dns lookups, as it was
    working without them also.

    SteveC


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