Spam Filter ISP Forums : MIME headers https://www.logsat.com/spamfilter/forums/ Wed, 11 Mar 2026 18:25:22 +0000 Thu, 19 Aug 2010 10:36:40 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.04 360 https://www.logsat.com/spamfilter/forums/RSS_post_feed.asp?TID=6867 <![CDATA[Spam Filter ISP Forums]]> https://www.logsat.com/spamfilter/forums/forum_images/web_wiz_forums.png https://www.logsat.com/spamfilter/forums/ <![CDATA[MIME headers : Ok, understood. The headers are...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6867&PID=13770&title=mime-headers#13770 Author: yapadu
Subject: 6867
Posted: 19 August 2010 at 10:36am

Ok, understood.  The headers are simply treated as part of the body, and no special syntax is required like subjects.

I suspect that if Russians wanted they could also send their messages using UTF-8, so it is not possible to stop 100% of Russian based spam but it should certainly stop some.
]]> Thu, 19 Aug 2010 10:36:40 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6867&PID=13770&title=mime-headers#13770 <![CDATA[MIME headers : There&#039;s nothing special you...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6867&PID=13769&title=mime-headers#13769 Author: LogSat
Subject: 6867
Posted: 18 August 2010 at 9:05pm

There's nothing special you need to do, SpamFilter will look thru that content as if it was part of the email's body. Do note however that in your example, some emails won't have that exact syntax. For example, in addition to:

ontent-type:charset="koi8-r"

they could have:
Content-Type: text/html; charset=koi8-r

(no quotes around koi8-r, "charset" keyword placed by itself)
]]> Wed, 18 Aug 2010 21:05:46 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6867&PID=13769&title=mime-headers#13769 <![CDATA[MIME headers : Actually koi8-r is Russian Cyrillic,...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6867&PID=13761&title=mime-headers#13761 Author: yapadu
Subject: 6867
Posted: 17 August 2010 at 10:19pm

Actually koi8-r is Russian Cyrillic, not Korean... oops.  I can't read either, which is why I want to block them Wink]]> Tue, 17 Aug 2010 22:19:18 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6867&PID=13761&title=mime-headers#13761 <![CDATA[MIME headers : Way back in 4.1.2.818 the following...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6867&PID=13757&title=mime-headers#13757 Author: yapadu
Subject: 6867
Posted: 17 August 2010 at 10:11pm

Way back in 4.1.2.818 the following was added:

// New to VersionNumber = '4.1.2.818';
{TODO -cNew The keyword searches are now performed also against all MIME headers, allowing to search for example the Content-Type, charset, Content-Transfer-Encoding, Content-Disposition and filename}

Are keywords automatically scanned in all MIME headers or do we target them like a subject search?

I want to build something to block specific charset matches.  For example if I want to block Korean, I could look for charset="koi8-r" or would I need something like:

content-type:charset="koi8-r"
]]> Tue, 17 Aug 2010 22:11:03 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6867&PID=13757&title=mime-headers#13757