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    SubjectRe: ORBZ is dead, don't use it...
    On Fri, 22 Mar 2002, Matti Aarnio wrote:

    > On Fri, Mar 22, 2002 at 01:45:36PM -0700, Richard Gooch wrote:
    > > Matti Aarnio writes:
    > > > We have been dropping people because they use now dead ORBZ:
    > > >
    > > > Rejected - see http://orbz.org/
    > > >
    > > > The problem with these DNS-RBL things is that they are subject to
    > > > all kinds of external pressures, and apparently ORBZ has followed
    > > > ORBS in this manner.
    > >
    > > Interesting. When I try to lookup hosts using orbz.org, I just get
    > > Non-existent host/domain results (thus mail shouldn't bounce). Why are
    > > some people bouncing email?
    >
    > I see both DNS lookup timeouts, and SERVFAIL returns.
    > In my books neither should lead to rejection, but
    > a) others may have better wisdom that I have,
    > b) some popular software are known to be unable to
    > separate any sort of temporary failures (timeouts
    > at DNS lookup) from real things (actual DNS-RBL)

    Only positive lookups should lead to rejection, IMHO. Timeouts & Co.
    should default to acception.




    - Davide


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