2 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Content-Transfer-...
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Frederik DannemareApr 27, 2005 1:55 pm 
Sam VarshavchikApr 27, 2005 2:10 pm 
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Subject:Re: [courier-users] Content-Transfer-Encoding: 8bit in emailsActions...
From:Sam Varshavchik (mrs@courier-mta.com)
Date:Apr 27, 2005 2:10:16 pm
List:net.sourceforge.lists.courier-users

Frederik Dannemare writes:

The thing is, I use lurker to archive mails for a couriermlm list but when people post with these headers

Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit

it "breaks" the subject line (thus, breaking threading in lurker) when a subject line contains non-ASCII (e.g. Danish chars. æøåÆØÅ).

See phenomenon on <http://sentinel.dk/lurker/list/dansk-gruppen.da.html> where a white space appears in the middle of a word in subject lines with æøåÆØÅ (only where mail is 8bit).

Is this because people use 8bit (unencoded?) when they should in fact use Quoted-Printable instead?

No, it's because 8-bit content in E-mail headers is illegal, irrespective of what encoding is used for the MIME content.

To encode 8-bit text in E-mail headers you must use the convention described in RFC 2047, as modified by RFC 2231.