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Re: [xml-dev] MarkMail: now archiving xml-dev

Edward C. Zimmermann wrote:
> Quoting Jason Hunter <jhunter@acm.org>:
>> If you divide 60 Gigs by 4,000,000 emails that's 15k per email.  That's 
>> bigger than I would have guessed an average email to be, but you have to 
>> take into account the full headers and the influence of the (relatively 
>> few) binary attachments.
> Even with "full headers" I think 15k average message size (excluding
> attachments) is suspect. 

Only on xml-dev could the results of "du -h" against scp'd files be 
taken into question.  :)

> A chunk of email headers could-- if one is bothering
> to clean things up-- be excluded as about the path of email transmission
> and not content. In a service its not really of interest to anyone how
> the mail arrived and got bounced around in one's own network--- and often
> we don't want to even publish such information.

On MarkMail we definitely don't need to show the world the full headers 
-- but we have found several situations where having the full headers 
has been useful.  Example: Having full Received headers gives you 
insight to when people are (unintentionally) lying with their Date headers.

> My philosophy is to try to tackle whatever representation model is thrown
> at me. Mail is a model. This way I can throw XML, mail and all kinds of
> other inputs into a big heap, search them (exploiting their structure),
> retrieve bits (exploiting their structure for unit of retrieval) and, should
> I desire, convert on the fly into other representations.. With a semantic
> crosswalk one can do some really really wacky things :-)

Sounds fun.  Where can I see this in action?  (Sorry, I don't know your 
background, so when you say "we can..." I don't know where to look.)


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