Re: [tdf-moderators] Filtering "UTF-8"

[James Wilde <james.wilde@sunde-wilde.com>]

OK I'll move these to a separate folder instead of deleting them.

//James






On Mar 12, 2012, at 14:14 , Christian Lohmaier wrote:

> Hi James, *,
> 
> On Mon, Mar 12, 2012 at 11:50 AM, James Wilde
> <james.wilde@sunde-wilde.com> wrote:
> 
>> On Mar 12, 2012, at 10:45 , Florian Effenberger wrote:
>> [...]
>> I agree.  My mailer does, but the code for UTF-8 in the From and Subject fields appears to be some kind of html code.
> 
> Whenever there are non-ascii characters in the subject/any other
> header field, it is mime-encoded.
> 
> http://tools.ietf.org/html/rfc2047#section-8 (examples)
> #################
> MIME (Multipurpose Internet Mail Extensions) Part Three:
>              Message Header Extensions for Non-ASCII Text
> [...]
> The following are examples of message headers containing 'encoded-
>   word's:
> 
>   From: =?US-ASCII?Q?Keith_Moore?= <moore@cs.utk.edu>
>   To: =?ISO-8859-1?Q?Keld_J=F8rn_Simonsen?= <keld@dkuug.dk>
>   CC: =?ISO-8859-1?Q?Andr=E9?= Pirard <PIRARD@vm1.ulg.ac.be>
>   Subject: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=
>    =?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=
> #################
> all valid, although the From one is unnecessary. both quoted printable
> as well as base64 variants are shown, examples with different charsets
> are shown (although it is not common to use different encodings, and
> even less common to mix them in one single header field)
> 
> I never saw html in from and/or subject lines ever, not in spam, not
> in other posts.
> 
>>  Otherwise the UTF-8 coding appears somewhere in the header, I believe.  And I've never seen the string I quoted anywhere other than in these two fields.
> 
> You did not quote any string. you did say it starts with "=utf-8?"
> (and probably missed a ? here), but didn't quote the string. A charset
> definition is not spam nor html.
> 
> And while it is true that most spam has this trait (as most spam that
> passes the filters is from china or russia and hence need to encode
> the text), the opposite conclusion (everything that has encoded
> characters is spam) is wrong.
> 
> ciao
> Christian
> 
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