Man and machine (was Re: Is virus scanning interception?)

[Quentin Campbell]

> -----Original Message-----
> From: Peter Fairbrother [mailto:zenadsl6186@zen.co.uk]
> Sent: 23 July 2002 19:56
> To: ukcrypto@chiark.greenend.org.uk
> Subject: Re: Man and machine (was Re: Is virus scanning=20
> interception?)=20
>=20
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> Peter Fairbrother wrote:
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> > Quentin Campbell wrote:
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> >> [1] It may surprise some people that an MTA needs to scan and
> >> possibly change the content of a message. In the Unix world it is=20
> >> normally necessary to
> >> escape the string "From " if it appears at the start of a line in
> >> the body=20
> >> of the message.=20
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> Having studied the Act further, that behaviour is not
> interception. s2(5)(b) excludes from the definition of interception:
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> "(b) any such conduct, in connection with conduct falling
> within paragraph (a), as gives a person who is neither the=20
> sender nor the intended recipient only so much access to a=20
> communication as is necessary for the purpose of identifying=20
> traffic data so comprised or attached."

That is irrelevant. My comment about the actions of MTAs has nothing to
do with headers or traffic data in a message. Read it again please!

It is about an MTA scanning message content and changing that content if
some criteria is met. Just like anti-spam and anti-virus scanning of a
message.

Quentin
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