Joshua Graham <[EMAIL PROTECTED]> wrote:
Okay I've got most of my rules fine tuned with the exception of spam that comes up as 7-bit. For some reason it always makes it to my inbox except that the message is attached the email (instead of being the email) and the main email is this:
"This message uses a character set that is not supported by the Internet Service. To view the original message content, open the attached message. If the text doesn't display correctly, save the attachment to disk, and then open it using a viewer that can display the original character set. "
That last part is an exchange message but for some reason these I'm guessing hte character set plus Encoding or whatnot.
Here's a chunk of the header.
Content-Type: text/html; charset="iso-9434-1" Content-Transfer-Encoding: 7Bit Content-Description: beneficial bravado3.dialup
I've got SA set to EN as the language but it still lets this garbage through. Any ideas?
Basically this is caused by the Microsoft Exchange IMC. When it gets an email with a character set encoding it doesn't recognise it attaches the original message to one like you quoted.
This does not impact on Spamassassin. Spamassassin will still process mail that uses bogus encoding sets and will mark it as spam (if it is). But in Exchange you will need to open the attachment to view the original spamassassin report. The X-Spam-Flag is still in the header so you can still filter on this flag.
Unfortunately the IMC inspects all of the charset tags to determine if the message is in an unsupported charset. This means that even though the spamassassin report is in plain text, if the attached spam uses "iso-bogus" the IMC will not display the plain text spamassassin report. And it can't be forced to display it without rewriting/deleting any "iso-bogus" tags which appear anywhere in any part of the mail attachments or otherwise - ie you can't force the IMC to display the message by placing an ISO-8859-1 charset encoding in the plain text spamassassin report as the IMC will still find the bogus encoding in the attached spam and mark the entire message as undisplayable.
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