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Re: "X-Message-Info:" seems to be diagnostic for spam

Cross-posted to 3 groups.

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I wrote wrote:

> X-Message-Info: (A 32 character string)

Apparently this was discussed in a thread in comp.mail.headers starting 
on Sept 11  / 2004 (X-Message-Info header : spam or not ?) as well as 
comp.mail.misc in a thread starting on June 7 / 2004 (What mailer 
inserts X-Message-Info headers?).

The conclusion from both threads indicated that the header line 
"X-Message-Info" was added by Hotmail to the headers of mail received by 
hotmail servers, but is not present in the headers of out-going mail 
sent by Hotmail.  As I don't have access to any MS-hosted mail account, 
I don't know if this characteristic is still in effect today.

Its appearance in spam back in 2004 was apparent (as evidenced by those 
threads) and its use must have ended prior to 2009.  It now seems to 
have started again as of February 2015.

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Re: "X-Message-Info:"  seems to be diagnostic for spam Spam Guy <Spam@Guy.c0m> - 2015-11-08 09:21 -0500
  Re: "X-Message-Info:"  seems to be diagnostic for spam Spam Guy <Spam@Guy.c0m> - 2015-11-08 12:29 -0500

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