funsec mailing list archives
Re: Mailer Software that inserts "X-NSCC" header?
From: Rich Kulawiec <rsk () gsp org>
Date: Tue, 25 Jun 2013 05:54:59 -0400
On Sun, Jun 23, 2013 at 10:16:45PM -0400, Jeffrey Walton wrote:
Would anyone know what mailer or company is used when "X-NSCC" headers are present in SPAM?
a) Inserting headers into the canned meat products of the Hormel Corporation would be a very neat trick. Perhaps you meant "spam"? (In an age of gratuitous litigation, Hormel has been surprisingly sanguine about our co-opting of the term "spam". I think the least we can do, as a professional courtesy, is to use it properly. "Spam", the slang term for unsolicited bulk email, is *never* capitalized-in-full because it is not an acronym and because it's not "SPAM"...which comes in a can.) b) X-headers in email are nonstandard and may be inserted at any point by any piece of software. One of the (many) problems with that is that there's no way to know *which* point was responsible for them -- well, absent secondary evidence. There's also no way to know if any subsequent point removed or modified any -- because even though it's not a good idea to do so, some mail systems do so anyway. Annnnd just to make things interesting, some mail systems insert them incorrectly (for example: no space after the colon) and some mail systems use the same X-header for different purposes. Oh yes, and then there are gratuitous case/spelling differences. A quick check of my "recent spam" collection (to various spamtraps and such) shows 542 different X-headers. *sigh* But none of them show X-NSCC, curiously. If you'd like to forward the message in question (with full headers of course) off-list, I can try to correlate it against my full spam archives and see if perhaps any clues turn up as to who's using it, what for, why, and so on. ---rsk _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
Current thread:
- Mailer Software that inserts "X-NSCC" header? Jeffrey Walton (Jun 23)
- Re: Mailer Software that inserts "X-NSCC" header? PsychoBilly (Jun 24)
- Re: Mailer Software that inserts "X-NSCC" header? Rich Kulawiec (Jun 25)
- Re: Mailer Software that inserts "X-NSCC" header? Valdis . Kletnieks (Jun 25)
- Re: Mailer Software that inserts "X-NSCC" header? Jeffrey Walton (Jun 26)
- Re: Mailer Software that inserts "X-NSCC" header? Rich Kulawiec (Jun 28)