honestly, if they want to read (are required to let others read) your mails
then they don't put headers in mails.from my days as ISP back in old europe
i know that we were forced to have "snooping devices" that can record email
conversations but we needed a court order to do so and every court order was
limited to only one mail account. the requirement was that it is impossible
for the receiver to find out that the mail was taped. not exactly the case
if you write headers into mails :-)

i suspect some sort of virus scanner in this case.

cheers
lenz

(zip files are unpacked by virus scanners to effectively scan them btw)

On Thu, May 7, 2009 at 9:33 AM, Dan Khan <[email protected]> wrote:

>
> Hi,
>
> We've been having a few issues with Telecom, who host our business
> email, truncating a particular email through their virus gateway which
> contained a zip file of 935Kb stating the file is too large -
> uncompressed this is 26MB so a little odd since it must be expanding
> the zip before calculating max size ?!, but this is an aside...
>
> Whilst trying to get to the bottom of this issue with Telecom, I
> noticed that the mail headers included a silent proxy through an mta
> at nz.eds.com.  When I asked their complex tech support about what
> this server was for, he was very cagey and refused to tell me what it
> was - which obviously only served to pique my curiosity more!
>
> Now I know EDS from the UK as a major govt consulting entity, so I'm
> imagining this is a 'silent' email storage/filter maybe for government
> email snooping compliance. Is this just my conspiracy theorist
> imagination gone wild??  Does anyone know if NZ law requires ISPs to
> archive and store all emails going through their service for later
> retrieval for legal/national security reasons?
>
> Here's the headers:
>
> Received: from aamta01.nz.eds.com ([64.38.4.150]) by mta03.xtra.co.nz
>          with ESMTP
>          id <[email protected]
> >;
>          Fri, 1 May 2009 13:14:24 +1200
> Received: from mail.simpova.com ([64.38.4.150]) by aamta01.nz.eds.com
>          with ESMTP
>          id <[email protected]>;
>          Fri, 1 May 2009 13:14:04 +1200
>
> Or maybe it's just a simple a content filtering gateway... :-)
>
> Cheers,
> -Dan
>
> >
>


-- 
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