Victor Duchovni put forth on 11/17/2010 11:53 PM:
> On Wed, Nov 17, 2010 at 06:28:21PM -0600, Stan Hoeppner wrote:
> 
>> Subject:
>> =?iso-8859-1?Q?Le_invitamos_a_asistir_a_la_Presentaci=F3n_de_la_Oportunid?=
>>      
>> =?iso-8859-1?Q?ad_de_negocio_en_ACN_Marketing_y_Servicios_de_Telecomunica?=
>>      =?iso-8859-1?Q?ciones?=
>>
>> Does anyone have a header_checks pcre that would allow me to reject or
>> discard any email with an encoded subject such as, but not limited to,
>> that above.  I.e. non plain text?
>>
>> I can't recall ever receiving legit email with an encoded subject, only
>> spam.
> 
> This is unwise. Some mail clients defensively encode all subjects,
> just in case they may contain non-ascii characters. Focus on blocking
> spam, rather than what appear to be unfamilar message encodings.

Thanks for the caution Victor.  I've implemented something with off list
help from Noel to prepend a custom header.  I'm then doing targeted
sorting of suspect messages with a sieve rule into a manual inspection
folder.  Based on what I've received so far, I'm guessing everything
that hits that folder will indeed be spam.  We'll see...

-- 
Stan

Reply via email to