Spam detection software, running on the system "sv.labornetjp.org", has
identified this incoming email as possible spam.  The original message
has been attached to this so you can view it (if it isn't spam) or label
similar future email.  If you have any questions, see
the administrator of that system for details.

Content preview:  Subject : Contribution for Workers’ Fight. Dear 
  Friends, Colleagues, and Comrades: I would like to inform you of the 
  trade union Centago Fast Chicken in Thailand. [...] 

Content analysis details:   (5.9 points, 5.0 required)

 pts rule name              description
---- ---------------------- --------------------------------------------------
 5.0 FORGED_YAHOO_RCVD      'From' yahoo.com does not match 'Received' headers
 0.0 HTML_60_70             BODY: Message is 60% to 70% HTML
 0.0 HTML_MESSAGE           BODY: HTML included in message
 0.4 DNS_FROM_RFC_ABUSE     RBL: Envelope sender in abuse.rfc-ignorant.org
 0.5 DNS_FROM_RFC_WHOIS     RBL: Envelope sender in whois.rfc-ignorant.org

The original message was not completely plain text, and may be unsafe to
open with some email clients; in particular, it may contain a virus,
or confirm that your address can receive spam.  If you wish to view
it, it may be safer to save it to a file and open it with an editor.