On Thu, Nov 18, 2010 at 12:34:21PM -0600, Stan Hoeppner wrote: > The fact that the Subject: header lines are encoded > probably has much more to do with the email being composed in a language > that requires special characters.
No, various english MUAs defensively, and unnecessarily, encode the Subject line. If the MUA supports UTF-8 and the user's environment is configured to say en_US.UTF-8, ... the MUA may well apply RFC 2047 to an ASCII subject. $ cat /etc/sysconfig/i18n LANG="en_US.UTF-8" SUPPORTED="en_US.UTF-8:en_US:en" SYSFONT="latarcyrheb-sun16" > This in itself does not make an email spam. This filter is too fragile IMHO. My best advice is to find filters that detect spam. > But the fact that we don't receive legit mail composed in > non-English languages does make it spam. RFC 2047 is not about non-Enlish. It enables encoding of non-ASCII characters, these may crop up in English text from time to time. It is naïve to assume otherwise :-) > Does my motivation here make more sense now? Not really, the approach is still too fragile IMHO. -- Viktor.