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[dns-wg] DNSSEC breaks qmail

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Lutz Donnerhacke lutz at iks-jena.de
Fri Feb 17 13:24:29 CET 2006

* Lutz Donnerhacke wrote:
> Qmail does not support EDNS and therefore get an truncated response
>  as RfC 1035 requires.

It's even worse. qmail uses the libc resolver. If it's a bind resolver,
qmail provides 512 bytes buffer, so bind can only fill in truncated data. If
it's djbdns, the buffer will contain no data at all. Both resolvers provide
approbiate return codes which qmail ignores.

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