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Re: [Asrg] Adding an "X-VirusRemoved" header to the SMTP spec/MIME boundaries?



> The spec does not only allow each boundary (for nested multiparts) to
> be different, it says that the boundaries MUST be different.  (It
> says "for obvious reasons" although they are not quite obvious - the
> start and end of each nested multipart would be aŽunambiguous[%]
> even with the same boundary for all levels, but it may make scanning
> easier and add a bit of fault tolerance)

This is true only if you are willing to rely on all multipart parts to
be well-formed.  I have seen a lot of spam which does not include the
closing delimiter line; such dependence would make it impossible to
attach such a spam to a spam complaint reliably.

I think the MIME people knew what they were doing when they decreed
that each level's delimiter must be different.

[%] I don't know what the second character of this word is supposed to
    be.  The message I'm replying to was marked as UTF-8, in which case
    the octet sequence I see corresponds to LATIN CAPITAL LETTER Z WITH
    CARON, which makes no sense to me here.

/~\ The ASCII				der Mouse
\ / Ribbon Campaign
 X  Against HTML	       mouse at rodents.montreal.qc.ca
/ \ Email!	     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B

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