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Re: Bug#510415: tech-ctte: Qmail inclusion (or not) in Debian



>>>>> "Sam" == Sam Hartman <hartmans@debian.org> writes:

>>>>> "Steve" == Steve Langasek <vorlon@debian.org> writes:
    Steve> Qmail does not value the contents of a bounce message. Dan
    Steve> documents this in a subordinate clause of his qmail
    Steve> reliability FAQ. That means: if your qmail is bouncing mail
    Steve> and at the same time, your system crashes, the bounce mail
    Steve> contents may be corrupt or incomplete.

    Steve> This sounds like data loss, which is normally considered a
    Steve> grave bug per <http://www.debian.org/Bugs/Developer>.  Do
    Steve> people disagree that this is a grave bug?  If you think
    Steve> it's a grave bug, do you think it should be a blocker for
    Steve> archive inclusion?
    Sam> Steve, I'm not on the TC.  However I do have a fair bit of
    Sam> experience with Internet standards and what sorts of
    Sam> guarantees Internet protocols make to their users about
    Sam> reliability.  If you take a look at the bottom of Page 19 of
    Sam> RFC 3461 you will find that an MTA is permitted to return a
    Sam> partial bounce message.

Try page 20 instead:-(
    Sam> While I'll admit that returning corrupted bounce messages is
    Sam> kind of ugly, I'm failing to see how it could be grave if
    Sam> returning a message truncated earlier would be just fine.
    Sam> Personally, I think that returning corrupting bounce messages
    Sam> would be a bug although I would not mind too much if a
    Sam> maintainer tagged it wontfix.

    Sam> However, one form of corruption would be more serious.  If
    Sam> bounce messages may include contents of other messages, or
    Sam> random memory possibly including security sensitive memory,
    Sam> then that would be an RC bug of some form in my mind.

    Sam> --Sam


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