Re: A question about Milters and Thread Safety

From: (no name) (no email)
Date: Mon Sep 03 2007 - 16:25:36 EDT

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    -------- Original-Nachricht --------
    > Datum: Mon, 03 Sep 2007 12:58:15 -0700
    > Von: "Ronald F. Guilmette" <>
    > An:
    > Betreff: Re: A question about Milters and Thread Safety

    >
    > In message <>,
    > (Wietse Venema) wrote:
    >
    > >Ronald F. Guilmette:
    > >> Just for the sake of my edification, could you please also tell me
    > >> _why_ a Postfix milter has to be thread safe?
    > >
    > >There is no such thing as a Postfix Milter.
    > >
    > >Your milter application runs on top of libmilter.
    >
    > Well, that sort-of begs the question... What if it _didn't_ run on
    > top of libmilter? What if it skipped that and tried to interface
    > to Postfix smtpd directly? Would my milter still have to be
    > thread-safe under that scenario?
    >
    > (Please forgive me for making such an issue of this, but it really
    > would be a major pain in the ass to make what I have in mind thread-
    > safe. A significant part of the problem with doing that... but
    > certainly not the only problem... is that the spam filter that I'd
    > like to turn into a milter does DNS lookups.
    >
    What spam filter is that?

    > Sadly, I am not aware
    > of any thread-safe DNS primitives library, so I kind-of think that
    > I'd be stuck trying to write my own, from scratch. Am I just looking
    > in the Wrong Places? Does anybody here happen to know of a reasonably
    > priced thread-safe DNS primitives library?)
    >
    >
    > Regards,
    > rfg

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